99183 — Management of oxygen chamber therapy
89,112 observed fee-for-service (49%) · ~92,629 estimated Medicare Advantage. Scaled from the observed floor by each state’s fee-for-service share (FFS share as of 2024) — scaled estimate — assumes MA utilization mirrors FFS; not an observation. How we scale
Disclosed Medicare fee-for-service services by billing state; open a bar for that state's ranked market. Average submitted charge / service by billing state, among the highest-volume states; open a bar for that state's ranked market.
- Market position — where this market sits on volume and growth among all state markets, and its rank.
- Worth a look — every state market for this search, ranked by a published score: size, growth, fragmentation, below-expected volume.
- Lookalike opportunities — groups billing below what peers of the same specialty, size, and state predict, with the expected figure shown.
- National benchmarks — where each group's volume sits nationally and within its specialty.
- Market structure — how concentrated this market is, and who owns the volume.
- Medicare-wide scaling — the exact payer split, and this market total scaled to all of Medicare, labeled as an estimate.
Nevvi's market analytics platform — code baskets, market structure and share, the twelve-year trend layer — is built and not launched yet. We're gathering interest in it.
Notify me at launch →| # | Physician group | City | St | Specialty | Providers | 99183 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | NAUTILUS HEALTH CARE GROUP LLC | TIERRA VERDE | FL | GENERAL SURGERY | 52 | 2,541 | $1,143,450 | $450 | premium | 12.9% | (727) 867-5480 |
| 2 | MOBILE HYPERBARIC CENTERS, LLC | EUCLID | OH | FAMILY PRACTICE | 15 | 1,931 | $482,750 | $250 | premium | 52.3% | (216) 692-7711 |
| 3 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SAN DIEGO | CA | DIAGNOSTIC RADIOLOGY | 2057 | 1,930 | $1,173,712 | $608 | premium | 7.5% | (800) 926-8273 |
| 4 | UNIVERSITY OF PENN - MEDICAL GROUP | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 3505 | 1,880 | $857,104 | $456 | premium | 42.6% | (215) 662-2777 |
| 5 | MOBILE HYPERBARIC CENTERS, LLC | EUCLID | TN | FAMILY PRACTICE | 15 | 1,876 | $469,000 | $250 | premium | 64.6% | (216) 692-7711 |
| 6 | IHC HEALTH SERVICES INC | MURRAY | UT | PHYSICIAN ASSISTANT | 3944 | 1,838 | $371,276 | $202 | premium | 84.9% | (801) 261-8346 |
| 7 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 1,490 | $2,059,180 | $1,382 | premium | 17.9% | (212) 263-9700 |
| 8 | PREMIER PROVIDER HEALTH PA | FORT WORTH | TX | PHYSICIAN ASSISTANT | 31 | 1,326 | $469,404 | $354 | premium | 6.8% | (817) 984-7536 |
| 9 | INFUCARE MEDICAL GROUP OF CALIFORNIA INC | PALM DESERT | CA | INFECTIOUS DISEASE | 3 | 1,081 | $270,250 | $250 | premium | 4.2% | (844) 243-7833 |
| 10 | SOUTH COAST WOUND CARE ASSOCIATES | SANTA BARBARA | CA | EMERGENCY MEDICINE | 4 | 1,067 | $480,150 | $450 | premium | 4.2% | (805) 696-7920 |
| 11 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | NY | PHYSICIAN ASSISTANT | 6294 | 1,025 | $1,126,475 | $1,099 | premium | 12.3% | — |
| 12 | EMERGENCY PHYSICIANS INC | FLEMING ISLAND | FL | EMERGENCY MEDICINE | 100 | 964 | $695,786 | $722 | premium | 4.9% | (904) 516-1000 |
| 13 | HYPERBARIC PHYSICIANS OF GEORGIA, INC. | MARIETTA | GA | UNDERSEA AND HYPERBARIC MEDICINE | 7 | 932 | $883,740 | $948 | premium | 27.6% | (770) 422-4268 |
| 14 | BILLINGS CLINIC | BILLINGS | MT | PHYSICIAN ASSISTANT | 811 | 920 | $367,740 | $400 | premium | 55.9% | (406) 657-4000 |
| 15 | ARIZONA ADVANCED SURGERY LLC | PHOENIX | AZ | GENERAL SURGERY | 89 | 918 | $286,670 | $312 | premium | 20.5% | (602) 340-0201 |
| 16 | NORTHEAST MEDICAL GROUP INC | NEW HAVEN | CT | PHYSICIAN ASSISTANT | 1380 | 901 | $691,968 | $768 | premium | 56.5% | — |
| 17 | PHYSICIANS UNITY | SAN ANTONIO | TX | NURSE PRACTITIONER | 59 | 899 | $184,206 | $205 | premium | 4.6% | (210) 705-5030 |
| 18 | MOUNTAIN VIEW HOSPITAL LLC | IDAHO FALLS | ID | PHYSICIAN ASSISTANT | 267 | 886 | $310,100 | $350 | premium | 43.5% | (208) 535-4343 |
| 19 | BSA PHYSICIANS GROUP INC | AMARILLO | TX | HOSPITALIST | 118 | 856 | $385,200 | $450 | premium | 4.4% | (806) 359-4673 |
| 20 | MICHAEL A BAIN MD INC | NEWPORT BEACH | CA | PHYSICIAN ASSISTANT | 2 | 839 | $110,656 | $132 | premium | 3.3% | (949) 720-0270 |
| 21 | HYPERHEAL HYPERBARICS, INC. | TOWSON | MD | GENERAL SURGERY | 12 | 792 | $237,600 | $300 | premium | 20.2% | (410) 433-4300 |
| 22 | PIEDMONT SPECIALTY HOSPITAL BILLING LLC | ATLANTA | GA | PHYSICIAN ASSISTANT | 247 | 791 | $623,700 | $788 | premium | 23.5% | (404) 605-5000 |
| 23 | HENNEPIN HEALTHCARE SYSTEM INC | MINNEAPOLIS | MN | PHYSICIAN ASSISTANT | 895 | 771 | $329,217 | $427 | premium | 43.1% | (612) 873-6963 |
| 24 | WOUND CENTER INC | BEVERLY HILLS | CA | PHYSICIAN ASSISTANT | 6 | 746 | $3,730,000 | $5,000 | premium | 2.9% | (310) 919-4179 |
| 25 | UNMC PHYSICIANS | OMAHA | NE | PHYSICIAN ASSISTANT | 1514 | 744 | $357,641 | $481 | premium | 48.8% | (402) 559-4000 |
| 26 | LEE HEALTH SYSTEM INC | FORT MYERS | FL | NURSE PRACTITIONER | 1370 | 738 | $309,960 | $420 | premium | 3.7% | (239) 343-9888 |
| 27 | PRINCE MEDICINE PC | WOODBURY | NY | PHYSICIAN ASSISTANT | 5 | 737 | $111,400 | $151 | premium | 8.8% | (516) 802-5025 |
| 28 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 717 | $587,940 | $820 | premium | 40.1% | (507) 284-2511 |
| 29 | ENLOE MEDICAL CENTER | CHICO | CA | DIAGNOSTIC RADIOLOGY | 362 | 713 | $164,703 | $231 | premium | 2.8% | (530) 332-4470 |
| 30 | GREATER BALTIMORE MEDICAL CENTER INC | BALTIMORE | MD | HOSPITALIST | 348 | 695 | $152,482 | $219 | premium | 17.7% | — |
| 31 | HONORHEALTH AMBULATORY | SCOTTSDALE | AZ | PHYSICIAN ASSISTANT | 601 | 676 | $203,496 | $301 | premium | 15.1% | — |
| 32 | THE REGENTS OF THE UNIVERSITY OF CALIFORNIA | LOS ANGELES | CA | VASCULAR SURGERY | 15 | 658 | $771,895 | $1,173 | premium | 2.6% | (310) 825-9111 |
| 33 | HILL MEDICAL SERVICES PLLC | LITTLE ROCK | AR | PHYSICIAN ASSISTANT | 16 | 655 | $294,095 | $449 | premium | 78.3% | (501) 552-3000 |
| 34 | LINCOLN SURGICAL GROUP PC | LINCOLN | NE | GENERAL SURGERY | 4 | 640 | $172,370 | $269 | premium | 41.9% | (402) 483-7825 |
| 35 | UNIVERSITY PHYSICIANS OF BROOKLYN, INC. | BROOKLYN | NY | OPHTHALMOLOGY | 171 | 640 | $166,400 | $260 | premium | 7.7% | (718) 270-1714 |
| 36 | HILL MEDICAL SERVICES PLLC | LITTLE ROCK | TX | PHYSICIAN ASSISTANT | 16 | 628 | $281,972 | $449 | premium | 3.2% | (501) 552-3000 |
| 37 | RENOVO WOUND AND HYPERBARICS PLLC | FORT WORTH | TX | NURSE PRACTITIONER | 4 | 593 | $230,677 | $389 | premium | 3.1% | (817) 764-1565 |
| 38 | SUNIL REDDY CHERUKU, MD, PA | AUSTIN | TX | PREVENTIVE MEDICINE | 3 | 579 | $203,808 | $352 | premium | 3.0% | (512) 476-7111 |
| 39 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 574 | $293,888 | $512 | premium | 32.8% | (919) 684-8111 |
| 40 | UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS | DALLAS | TX | PHYSICIAN ASSISTANT | 3200 | 549 | $400,770 | $730 | premium | 2.8% | (214) 633-5555 |
| 41 | MARTIN LUTHER KING JR COMMUNITY MEDICAL FOUNDATION | COMPTON | CA | DIAGNOSTIC RADIOLOGY | 205 | 548 | $130,424 | $238 | premium | 2.1% | — |
| 42 | UNIVERSITY HEALTH SYSTEM, INC. | KNOXVILLE | TN | NURSE PRACTITIONER | 561 | 538 | $190,990 | $355 | premium | 18.5% | (865) 305-6333 |
| 43 | EDGAR ZAMBRANO D.O, P.A | MOUNT PLEASANT | TX | NURSE PRACTITIONER | 4 | 525 | $131,274 | $250 | premium | 2.7% | (903) 575-9408 |
| 44 | IHC HEALTH SERVICES INC | MURRAY | TX | PHYSICIAN ASSISTANT | 3944 | 525 | $106,050 | $202 | premium | 2.7% | (801) 261-8346 |
| 45 | TOWER HEALTH MEDICAL GROUP | WEST READING | PA | INTERNAL MEDICINE | 590 | 520 | $256,360 | $493 | premium | 11.8% | (484) 628-5455 |
| 46 | HYPERBARIC MEDICINE, INC. | FORT WALTON | FL | ANESTHESIOLOGY | 2 | 520 | $312,000 | $600 | premium | 2.6% | — |
| 47 | AURORA MEDICAL GROUP, INC. | MILWAUKEE | WI | DIAGNOSTIC RADIOLOGY | 3696 | 506 | $688,160 | $1,360 | premium | 36.2% | (414) 421-8400 |
| 48 | WATSON CLINIC LLP | LAKELAND | FL | NURSE PRACTITIONER | 363 | 502 | $144,576 | $288 | premium | 2.5% | (863) 680-7780 |
| 49 | CALIFORNIA INSTITUTE OF COSMETIC AND RECONSTRUCTIVE SURGERY A MEDICAL | BAKERSFIELD | CA | PLASTIC AND RECONSTRUCTIVE SURGERY | 3 | 501 | $125,250 | $250 | premium | 2.0% | (661) 327-2101 |
| 50 | PRISMA HEALTH MEDICAL GROUP-MIDLANDS | COLUMBIA | SC | PHYSICIAN ASSISTANT | 1017 | 497 | $118,783 | $239 | premium | 15.5% | (803) 749-5101 |
| 51 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 491 | $184,125 | $375 | premium | 23.5% | — |
| 52 | AUGUSTA MEDICAL GROUP | FISHERSVILLE | VA | PHYSICIAN ASSISTANT | 424 | 479 | $81,430 | $170 | premium | 16.3% | (540) 332-5595 |
| 53 | VIRGINIA MASON MEDICAL CENTER | SEATTLE | WA | PHYSICIAN ASSISTANT | 879 | 472 | $193,306 | $410 | premium | 47.8% | (206) 223-6600 |
| 54 | COMPREHENSIVE WOUND CARE LLC | NORTHBROOK | ND | FAMILY PRACTICE | 4 | 471 | $176,625 | $375 | premium | 54.1% | (847) 559-7702 |
| 55 | HYPERBARIC PHYSICIAN SERVICES, LLC | NORFOLK | VA | EMERGENCY MEDICINE | 7 | 468 | $121,680 | $260 | premium | 15.9% | (757) 261-4325 |
| 56 | BANNER PHYSICIAN SPECIALISTS ARIZONA LLC | SUN CITY | AZ | PHYSICIAN ASSISTANT | 354 | 468 | $133,848 | $286 | premium | 10.4% | (623) 832-4000 |
| 57 | HYPERBARIC AND WOUNDCARE INC | TAMPA | FL | GENERAL SURGERY | 26 | 463 | $153,716 | $332 | premium | 2.3% | (813) 558-4900 |
| 58 | POUDRE VALLEY MEDICAL GROUP LLC | COLORADO SPRINGS | CO | PHYSICIAN ASSISTANT | 2390 | 443 | $184,731 | $417 | premium | 35.8% | — |
| 59 | VALLEY HYPERBARICS LLC | CHANDLER | AZ | PHYSICIAN ASSISTANT | 6 | 435 | $290,145 | $667 | premium | 9.7% | (480) 728-3974 |
| 60 | OCALA INFECTIOUS DISEASE AND WOUND CENTER, INC | OCALA | FL | NURSE PRACTITIONER | 7 | 432 | $70,511 | $163 | premium | 2.2% | (352) 401-7552 |
| 61 | WELLSPAN MEDICAL GROUP | YORK | PA | PHYSICIAN ASSISTANT | 2312 | 425 | $111,350 | $262 | premium | 9.6% | — |
| 62 | MERCY CLINIC OKLAHOMA COMMUNITIES | OKLAHOMA CITY | OK | PHYSICIAN ASSISTANT | 642 | 418 | $164,692 | $394 | premium | 30.4% | (405) 254-9690 |
| 63 | ALLAN M SPIEGEL MD PA | PALM HARBOR | FL | NEUROLOGY | 3 | 416 | $131,389 | $316 | premium | 2.1% | — |
| 64 | IHC HEALTH SERVICES INC | MURRAY | FL | PHYSICIAN ASSISTANT | 3944 | 412 | $84,840 | $206 | premium | 2.1% | (801) 261-8346 |
| 65 | UNIVERSITY OF ALABAMA HEALTH SERVICES FOUNDATION, PC | BIRMINGHAM | AL | NURSE PRACTITIONER | 2788 | 411 | $223,995 | $545 | premium | 75.4% | (205) 934-3460 |
| 66 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 407 | $97,273 | $239 | premium | 12.7% | — |
| 67 | INNOVIS HEALTH LLC | FARGO | ND | NURSE PRACTITIONER | 565 | 399 | $159,999 | $401 | premium | 45.9% | (701) 364-6600 |
| 68 | UT REGIONAL ONE PHYSICIANS INC | MEMPHIS | LA | NURSE PRACTITIONER | 328 | 399 | $158,112 | $396 | premium | 21.2% | (901) 545-8336 |
| 69 | MAIN LINE HEALTHCARE | BRYN MAWR | PA | NURSE PRACTITIONER | 1157 | 398 | $165,430 | $416 | premium | 9.0% | — |
| 70 | SPARTANBURG MEDICAL CENTER | SPARTANBURG | SC | NURSE PRACTITIONER | 1070 | 392 | $307,696 | $785 | premium | 12.3% | (864) 587-3000 |
| 71 | MAT SU VALLEY MEDICAL CENTER LLC | WASILLA | AK | NURSE PRACTITIONER | 23 | 390 | $212,160 | $544 | premium | 81.4% | (907) 352-2880 |
| 72 | FLORIDA HEALTH CARE LLC | OCALA | FL | INFECTIOUS DISEASE | 4 | 389 | $66,908 | $172 | premium | 2.0% | — |
| 73 | HALIFAX HEALTHCARE SYSTEMS INC | DAYTONA BCH | FL | NURSE PRACTITIONER | 337 | 388 | $86,136 | $222 | premium | 2.0% | (386) 254-4000 |
| 74 | BEAR CREEK SURGERY PA, PC | ASHLAND | OR | PHYSICIAN ASSISTANT | 2 | 383 | $114,700 | $299 | premium | 18.6% | (541) 488-4464 |
| 75 | SOUTH BROWARD HOSPITAL DISTRICT | HOLLYWOOD | FL | NURSE PRACTITIONER | 665 | 381 | $267,081 | $701 | premium | 1.9% | (954) 265-7750 |
| 76 | YAVAPAI COMMUNITY HOSPITAL ASSOCIATION | PRESCOTT | AZ | DIAGNOSTIC RADIOLOGY | 20 | 381 | $79,872 | $210 | premium | 8.5% | (928) 771-7577 |
| 77 | PREMIER PROVIDER HEALTH PA | FORT WORTH | VA | PHYSICIAN ASSISTANT | 31 | 375 | $132,750 | $354 | premium | 12.7% | (817) 984-7536 |
| 78 | HEARTLAND REGIONAL MEDICAL CENTER | SAINT JOSEPH | MO | NURSE PRACTITIONER | 387 | 374 | $81,850 | $219 | premium | 35.0% | (816) 271-6870 |
| 79 | THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS | CHICAGO | IL | NURSE PRACTITIONER | 1170 | 374 | $235,618 | $630 | premium | 17.9% | — |
| 80 | JM HOLDINGS OF BREVARD INC | MELBOURNE | FL | PHYSICIAN ASSISTANT | 7 | 373 | $74,600 | $200 | premium | 1.9% | (321) 676-3200 |
| 81 | BEND MEMORIAL CLINIC PC | BEND | OR | PHYSICIAN ASSISTANT | 233 | 366 | $130,662 | $357 | premium | 17.8% | (541) 382-2811 |
| 82 | MEMORIAL HOSPITAL AT GULFPORT | GULFPORT | LA | NURSE PRACTITIONER | 462 | 364 | $327,600 | $900 | premium | 19.3% | — |
| 83 | ST MARYS MEDICAL GROUP LLC | EVANSVILLE | IN | NURSE PRACTITIONER | 226 | 362 | $108,600 | $300 | premium | 39.8% | (812) 491-3236 |
| 84 | SHOCK TRAUMA ASSOCIATES PA | BALTIMORE | MD | NURSE PRACTITIONER | 256 | 357 | $248,115 | $695 | premium | 9.1% | (410) 328-6704 |
| 85 | PROHEALTH PARTNERS, A MEDICAL GROUP | LONG BEACH | CA | INTERNAL MEDICINE | 228 | 355 | $67,875 | $191 | premium | 1.4% | (562) 495-4952 |
| 86 | GROSSMAN MEDICAL GROUP INC | WEST HILLS | CA | GENERAL SURGERY | 9 | 352 | $110,830 | $315 | premium | 1.4% | (818) 981-2050 |
| 87 | PAM PHYSICIAN ENTERPRISE | SAN ANTONIO | TX | PHYSICAL MEDICINE AND REHABILITATION | 33 | 348 | $114,492 | $329 | premium | 1.8% | (210) 581-5300 |
| 88 | SINGING RIVER HEALTH SYSTEM | PASCAGOULA | MS | NURSE PRACTITIONER | 282 | 344 | $147,576 | $429 | premium | 30.0% | (228) 818-0563 |
| 89 | SUMMIT MEDICAL GROUP INC | EDGEWOOD | KY | NURSE PRACTITIONER | 806 | 344 | $87,720 | $255 | premium | 70.9% | (859) 578-5880 |
| 90 | SAINT ALPHONSUS REGIONAL MEDICAL CENTER INC | BOISE | ID | PHYSICIAN ASSISTANT | 647 | 342 | $84,816 | $248 | premium | 16.8% | — |
| 91 | UPSTATE EMERGENCY MEDICINE, INC | SYRACUSE | NY | EMERGENCY MEDICINE | 55 | 338 | $152,100 | $450 | premium | 4.1% | (315) 492-5437 |
| 92 | CARLE HEALTH CARE INCORPORATED | URBANA | IL | NURSE PRACTITIONER | 1528 | 333 | $313,020 | $940 | premium | 15.9% | (888) 712-2753 |
| 93 | MIDWEST HYPERBARIC PHYSICIANS INC | MIAMISBURG | OH | EMERGENCY MEDICINE | 2 | 323 | $211,565 | $655 | premium | 8.7% | (216) 643-2780 |
| 94 | BENJAMIN AND BLANK LLC | SOUTH MIAMI | FL | PULMONARY DISEASE | 2 | 316 | $79,000 | $250 | premium | 1.6% | (786) 662-8400 |
| 95 | UNIVERSITY PROFESSIONAL SERVICES | PORTLAND | OR | PHYSICIAN ASSISTANT | 1717 | 315 | $93,929 | $298 | premium | 15.3% | (503) 494-8311 |
| 96 | AJ APPLEWHITE MD PA | DALLAS | TX | FAMILY PRACTICE | 2 | 311 | $63,444 | $204 | premium | 1.6% | (214) 820-4400 |
| 97 | MERCY HEALTH PHYSICIANS YOUNGSTOWN SPECIALTY CARE LLC | YOUNGSTOWN | OH | NURSE PRACTITIONER | 476 | 310 | $60,450 | $195 | premium | 8.4% | (330) 480-3655 |
| 98 | COASTAL MEDICAL ASSOCIATES | WEYMOUTH | RI | PHYSICIAN ASSISTANT | 458 | 307 | $92,407 | $301 | premium | 100.0% | (781) 792-4136 |
| 99 | WOUND RX MEDICAL MICHIGAN PLLC | FARMINGTON HILLS | FL | GENERAL SURGERY | 2 | 304 | $60,800 | $200 | premium | 1.5% | (786) 531-4702 |
| 100 | GEORGETOWN PHYSICIAN ASSOCIATES, LLC | MURRELLS INLET | SC | FAMILY PRACTICE | 230 | 304 | $56,848 | $187 | premium | 9.5% | (843) 652-8450 |
Showing the top 100 of 246 groups — the full ranking is part of the market analytics platform — built, not launched yet. Notify me at launch →
*Share of the state's disclosed Medicare-FFS services for the primary code, counted once per clinician. "St" is the state the volume was billed from: a group appears in each state where its clinicians bill Medicare, with that state's volume and share ("City" is the group's registered location). Group figures sum clinicians affiliated with exactly one group; clinicians in several groups are listed in each group's drill-down but not volume-attributed to any single group, so shares reflect attributable volume. See Methods.
Comparing against an all-payer estimate?
These are exact counts from Medicare fee-for-service claims — roughly a third to half of most procedure markets, depending on payer mix. Modeled all-payer databases project the remainder statistically; we publish the audited floor and label it as such. Same market, different denominator. How the numbers reconcile →