Who bills the most Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967) to Medicare in California?
Medicare Part B FFS · CY2024 · as published by CMS110 physician groups billed Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967) to Medicare fee-for-service in California in 2024; the top five named groups hold 62% of that volume, and independent (non-hospital-affiliated) groups deliver 1%.
Q9967 — Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml · Source: CMS Medicare Physician & Other Practitioners PUF (Part B), CY2024 release. Medicare fee-for-service only.
Snapshot covers the whole California market — the table below shows the top 100 groups (free tier).
Medicare fee-for-service covers 49% of Medicare in California; Medicare Advantage penetration 45% → 51% since 2020.
| # | Physician group | City | St | Specialty | Providers | Q9967 svcs | Share* | Phone |
|---|---|---|---|---|---|---|---|---|
| 1 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 969,038 | 8.9% | (916) 681-8852 |
| 2 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 853,098 | 7.8% | (415) 600-1020 |
| 3 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 661,922 | 6.1% | (858) 455-9100 |
| 4 | PALM DESERT RADIOLOGY MEDICAL GROUP INC | RANCHO MIRAGE | CA | DIAGNOSTIC RADIOLOGY | 125 | 416,690 | 3.8% | (760) 773-1251 |
| 5 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 363,611 | 3.3% | (916) 983-7476 |
| 6 | UCLA RADIOLOGY MEDICAL GROUP | LOS ANGELES | CA | DIAGNOSTIC RADIOLOGY | 191 | 175,027 | 1.6% | (310) 301-6800 |
| 7 | CEDARS-SINAI MEDICAL CARE FOUNDATION | LOS ANGELES | CA | PHYSICIAN ASSISTANT | 1699 | 156,021 | 1.4% | (310) 423-0674 |
| 8 | BEVERLY RADIOLOGY MEDICAL GROUP III | GARDEN GROVE | CA | DIAGNOSTIC RADIOLOGY | 328 | 130,819 | 1.2% | — |
| 9 | RADIANT IMAGING INC | PASADENA | CA | DIAGNOSTIC RADIOLOGY | 67 | 100,875 | 0.9% | (626) 229-8969 |
| 10 | CALIFORNIA MANAGED IMAGING MEDICAL GROUP INC | SANTA BARBARA | CA | DIAGNOSTIC RADIOLOGY | 64 | 80,793 | 0.7% | (800) 841-4236 |
| 11 | EPIC CARE | PLEASANT HILL | CA | HEMATOLOGY/ONCOLOGY | 54 | 70,150 | 0.6% | (925) 687-2570 |
| 12 | CALIFORNIA CANCER ASSOCIATES FOR RESEARCH AND EXCELLENCE INC | FRESNO | CA | HEMATOLOGY/ONCOLOGY | 62 | 68,371 | 0.6% | (559) 326-1222 |
| 13 | IHS RADIOLOGY MEDICAL GROUP INC | SAN DIEGO | CA | DIAGNOSTIC RADIOLOGY | 68 | 61,840 | 0.6% | (619) 295-9729 |
| 14 | RAVI PATEL M D INC | BAKERSFIELD | CA | HEMATOLOGY/ONCOLOGY | 20 | 59,981 | 0.5% | (661) 322-2206 |
| 15 | SHARP REES-STEALY MEDICAL GROUP INC | SAN DIEGO | CA | PHYSICIAN ASSISTANT | 872 | 57,367 | 0.5% | (858) 499-2600 |
| 16 | SVMHS CLINICS | SALINAS | CA | PHYSICIAN ASSISTANT | 245 | 52,975 | 0.5% | (831) 422-3636 |
| 17 | MERCED MRI MEDICAL GROUP | LOS BANOS | CA | DIAGNOSTIC RADIOLOGY | 4 | 51,303 | 0.5% | (209) 384-4250 |
| 18 | CARDIOVASCULAR MEDICAL GROUP OF SOUTHERN CALIFORNIA | BEVERLY HILLS | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 11 | 49,100 | 0.4% | (310) 278-3400 |
| 19 | KERN RADIOLOGY MEDICAL GROUP INC | BAKERSFIELD | CA | DIAGNOSTIC RADIOLOGY | 87 | 47,584 | 0.4% | (661) 616-1458 |
| 20 | VALLEY RADIOLOGY MEDICAL ASSOCIATES INC | SAN JOSE | CA | DIAGNOSTIC RADIOLOGY | 25 | 46,650 | 0.4% | (408) 358-6881 |
| 21 | SILICON VALLEY MEDICAL IMAGING INC A MEDICAL CORPORATION | FREMONT | CA | NUCLEAR MEDICINE | 3 | 45,200 | 0.4% | (510) 792-9700 |
| 22 | ADVENTIST HEALTH PHYSICIANS NETWORK | HANFORD | CA | NURSE PRACTITIONER | 651 | 43,271 | 0.4% | (559) 583-4695 |
| 23 | CENTRIC HEALTH | BAKERSFIELD | CA | INTERNAL MEDICINE | 63 | 43,211 | 0.4% | — |
| 24 | APEX CARDIOLOGY CONSULTANTS | INGLEWOOD | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 8 | 41,801 | 0.4% | (310) 672-3900 |
| 25 | UNITED MEDICAL IMAGING HEALTHCARE INC | LOS ANGELES | CA | DIAGNOSTIC RADIOLOGY | 59 | 33,800 | 0.3% | (323) 262-1814 |
| 26 | PACIFIC VASCUCARE, INC. | LOS ANGELES | CA | VASCULAR SURGERY | 4 | 31,640 | 0.3% | (213) 201-0850 |
| 27 | MAYO CLINIC ARIZONA | PHOENIX | CA | PHYSICIAN ASSISTANT | 1635 | 30,752 | 0.3% | (800) 603-0558 |
| 28 | TOWER UROLOGY INC | LOS ANGELES | CA | UROLOGY | 13 | 23,313 | 0.2% | 3108549898159 |
| 29 | ZWANGER AND PESIRI RADIOLOGY GROUP LLP | LINDENHURST | CA | DIAGNOSTIC RADIOLOGY | 91 | 21,810 | 0.2% | (631) 225-7200 |
| 30 | BASS MEDICAL GROUP | WALNUT CREEK | CA | OTOLARYNGOLOGY | 318 | 20,679 | 0.2% | — |
| 31 | CALIFORNIA MEDICAL IMAGING ASSOCIATES INC | VISALIA | CA | DIAGNOSTIC RADIOLOGY | 5 | 20,445 | 0.2% | (559) 713-6050 |
| 32 | CALIFORNIA IMAGING AND DIAGNOSTICS MEDICAL GROUP, INC. | HEMET | CA | DIAGNOSTIC RADIOLOGY | 3 | 19,332 | 0.2% | (951) 929-9688 |
| 33 | BEND MEMORIAL CLINIC PC | BEND | CA | PHYSICIAN ASSISTANT | 233 | 18,900 | 0.2% | (541) 382-2811 |
| 34 | UROLOGY ASSOCIATES OF CENTRAL CALIFORNIA MEDICAL GROUP INC | FRESNO | CA | UROLOGY | 11 | 18,790 | 0.2% | (559) 321-2800 |
| 35 | PROHEALTH ADVANCED IMAGING MEDICAL GROUP INC | NORTH HOLLYWOOD | CA | DIAGNOSTIC RADIOLOGY | 13 | 18,785 | 0.2% | (818) 301-6700 |
| 36 | MICHAEL P SHERMAN MD PHD A MEDICAL CORPORATION | WALNUT CREEK | CA | HEMATOLOGY/ONCOLOGY | 13 | 16,775 | 0.2% | (925) 939-9610 |
| 37 | MINIMALLY INVASIVE SURGICAL SOLUTIONS MEDICAL CORPORATION | SAN JOSE | CA | INTERVENTIONAL RADIOLOGY | 5 | 15,540 | 0.1% | (408) 918-0405 |
| 38 | DIAGNOSTIC CENTERS OF AMERICA, LLP | BOYNTON BEACH | CA | DIAGNOSTIC RADIOLOGY | 103 | 13,320 | 0.1% | (561) 496-6935 |
| 39 | CROWN VALLEY RADIOLOGISTS INC A PROFESSIONAL MEDICAL CORP | MISSION VIEJO | CA | DIAGNOSTIC RADIOLOGY | 5 | 13,303 | 0.1% | (949) 367-1010 |
| 40 | STOCKDALE RADIOLOGY PHYSICIANS SERVICES INC | BAKERSFIELD | CA | DIAGNOSTIC RADIOLOGY | 3 | 13,168 | 0.1% | (661) 631-8000 |
| 41 | VALLEY RADIOLOGY CONSULTANTS MEDICAL GROUP INC | ESCONDIDO | CA | DIAGNOSTIC RADIOLOGY | 10 | 12,327 | 0.1% | (760) 520-8500 |
| 42 | MORAN ROWEN AND DORSEY INC | ORANGE | CA | DIAGNOSTIC RADIOLOGY | 35 | 11,001 | 0.1% | (714) 628-3305 |
| 43 | INTELLIRAD IMAGING LLC | MIAMI | CA | DIAGNOSTIC RADIOLOGY | 61 | 10,941 | 0.1% | (305) 854-4400 |
| 44 | NEPHROLOGY ASSOCIATES OF UPLAND AND POMONA | POMONA | CA | NEPHROLOGY | 6 | 10,825 | 0.1% | (909) 981-5882 |
| 45 | INTEGRATED PAIN SPECIALISTS OF SOUTHERN CALIFORNIA INC | SAN DIEGO | CA | ANESTHESIOLOGY | 2 | 10,200 | 0.1% | (619) 398-2988 |
| 46 | SAN JOAQUIN CARDIOLOGY MEDICAL GROUP INC | STOCKTON | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 8 | 10,146 | 0.1% | (209) 464-7681 |
| 47 | PENINSULA RADIOLOGICAL ASSOCIATES LIMITED | NEWPORT NEWS | CA | DIAGNOSTIC RADIOLOGY | 65 | 8,600 | 0.1% | (757) 594-3900 |
| 48 | MODESTO ADVANCED DIAGNOSTIC IMAGING MEDICAL CENTER | MODESTO | CA | DIAGNOSTIC RADIOLOGY | 56 | 8,495 | 0.1% | (209) 524-6800 |
| 49 | ATHAR M. ANSARI M D INC. | EL CENTRO | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 2 | 8,353 | 0.1% | (760) 353-3222 |
| 50 | AM AND BB IMAGING CENTER INC | CARLSBAD | CA | DIAGNOSTIC RADIOLOGY | 2 | 8,051 | 0.1% | (760) 730-3536 |
| 51 | EINSTEIN PRACTICE PLAN INC | PHILADELPHIA | CA | DIAGNOSTIC RADIOLOGY | 740 | 7,213 | 0.1% | (215) 456-8242 |
| 52 | CLAREMONT IMAGING ASSOCIATES A MEDICAL CORPORATION | POMONA | CA | DIAGNOSTIC RADIOLOGY | 5 | 7,074 | 0.1% | (909) 450-0393 |
| 53 | UROLOGICAL ASSOCIATES PC | MOLINE | CA | UROLOGY | 16 | 7,030 | 0.1% | (563) 359-2997 |
| 54 | HEALTH DIAGNOSTICS OF CALIFORNIA A PROFESSIONAL CORPORATION | IRVINE | CA | DIAGNOSTIC RADIOLOGY | 168 | 6,672 | 0.1% | (480) 306-6949 |
| 55 | SAINT AGNES MEDICAL FOUNDATION | FRESNO | CA | INTERNAL MEDICINE | 155 | 6,588 | 0.1% | (559) 450-5777 |
| 56 | SOUTHERN CALIFORNIA MULTI-SPECIALTY CENTER INC | SHERMAN OAKS | CA | VASCULAR SURGERY | 16 | 6,211 | 0.1% | (818) 900-6480 |
| 57 | UNIVERSITY SPINE AND PAIN CENTER INC | HERMOSA BEACH | CA | PAIN MANAGEMENT | 3 | 6,061 | 0.1% | (424) 488-0500 |
| 58 | VALLEY MRI AND RADIOLOGY INC | STOCKTON | CA | DIAGNOSTIC RADIOLOGY | 9 | 5,980 | 0.1% | (209) 467-1000 |
| 59 | VASCULAR INSTITUTE OF CLEVELAND LLC | GARFIELD HEIGHTS | CA | CARDIAC SURGERY | 2 | 5,948 | 0.1% | (216) 839-0692 |
| 60 | BEVERLY HILLS ONCOLOGY MEDICAL GROUP INC | BEVERLY HILLS | CA | RADIATION ONCOLOGY | 8 | 5,696 | 0.1% | (310) 432-8999 |
| 61 | SANTA BARBARA RADIOLOGY MEDICAL GROUP, INC. | SANTA BARBARA | CA | DIAGNOSTIC RADIOLOGY | 10 | 5,065 | 0.0% | (805) 569-7279 |
| 62 | IMPERIAL VALLEY FAMILY CARE MEDICAL GROUP A P C | EL CENTRO | CA | FAMILY PRACTICE | 23 | 4,744 | 0.0% | (760) 353-6363 |
| 63 | SHASTA ORTHOPEDICS AND SPORTS MEDICINE A MEDICAL CORPORATION | REDDING | CA | PODIATRY | 37 | 4,457 | 0.0% | (530) 246-2467 |
| 64 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SAN DIEGO | CA | DIAGNOSTIC RADIOLOGY | 2057 | 4,345 | 0.0% | (800) 926-8273 |
| 65 | COUNTY OF MONTEREY | SALINAS | CA | DIAGNOSTIC RADIOLOGY | 183 | 4,325 | 0.0% | (831) 755-4235 |
| 66 | KAISER FOUNDATION HEALTH PLAN OF THE MID ATLANTIC STATES, INC | LARGO | CA | INTERNAL MEDICINE | 1965 | 3,720 | 0.0% | (301) 618-5700 |
| 67 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 3,702 | 0.0% | (650) 723-4000 |
| 68 | CITY OF HOPE MEDICAL FOUNDATION | DUARTE | CA | NURSE PRACTITIONER | 942 | 3,650 | 0.0% | (626) 256-4673 |
| 69 | EAST BAY CARDIOVASCULAR AND THORACIC ASSOCIATES INC | DANVILLE | CA | CARDIAC SURGERY | 17 | 3,574 | 0.0% | (925) 676-2600 |
| 70 | NEPHROLOGY ASSOCIATES MEDICAL GROUP INC | RIVERSIDE | CA | NEPHROLOGY | 63 | 3,544 | 0.0% | (951) 687-2800 |
| 71 | PERMANENTE MEDICAL GROUP INC | SANTA CLARA | CA | INTERNAL MEDICINE | 10890 | 3,270 | 0.0% | (408) 851-1000 |
| 72 | SASHA SALLOUM MD INC A PROFESSIONAL MEDICAL CORPORATION | CHULA VISTA | CA | PODIATRY | 9 | 3,098 | 0.0% | (619) 567-7007 |
| 73 | RADIOLOGY AND IMAGING INC | SPRINGFIELD | CA | DIAGNOSTIC RADIOLOGY | 60 | 2,800 | 0.0% | (413) 827-7400 |
| 74 | ADVANCED IMAGING CENTER, INC. | LANCASTER | CA | DIAGNOSTIC RADIOLOGY | 8 | 2,601 | 0.0% | (661) 949-8111 |
| 75 | GASTON RADIOLOGY PA | GASTONIA | CA | DIAGNOSTIC RADIOLOGY | 28 | 2,450 | 0.0% | (704) 834-2000 |
| 76 | PAUL E KIM MD INC | SAN DIEGO | CA | ANESTHESIOLOGY | 2 | 2,297 | 0.0% | (619) 543-0144 |
| 77 | BANDB MEDICAL GROUP INC | BELLFLOWER | CA | VASCULAR SURGERY | 9 | 2,250 | 0.0% | (562) 888-8961 |
| 78 | ENLOE MEDICAL CENTER | CHICO | CA | DIAGNOSTIC RADIOLOGY | 362 | 2,230 | 0.0% | (530) 332-4470 |
| 79 | THE SOUTHEAST PERMANENTE MEDICAL GROUP | ATLANTA | CA | FAMILY PRACTICE | 788 | 2,230 | 0.0% | (404) 364-7206 |
| 80 | RIDEOUT MEMORIAL HOSPITAL | MARYSVILLE | CA | DIAGNOSTIC RADIOLOGY | 89 | 2,025 | 0.0% | (530) 740-1900 |
| 81 | MONTEFIORE MEDICAL CENTER | BRONX | CA | PHYSICAL THERAPIST IN PRIVATE PRACTICE | 2796 | 2,022 | 0.0% | (866) 633-8255 |
| 82 | REDDING PAIN MEDICINE | REDDING | CA | NURSE PRACTITIONER | 2 | 1,956 | 0.0% | (530) 247-3733 |
| 83 | HAWAII PERMANENTE MEDICAL GROUP INC | HONOLULU | CA | FAMILY PRACTICE | 722 | 1,900 | 0.0% | (808) 432-0000 |
| 84 | RIVER CITY IMAGING ASSOCIATES PA | SAN ANTONIO | CA | DIAGNOSTIC RADIOLOGY | 22 | 1,850 | 0.0% | (210) 704-2011 |
| 85 | RADIOLOGY ASSOCIATES OF SAN LUIS OBISPO A MEDICAL GROUP INC | SAN LUIS OBISPO | CA | DIAGNOSTIC RADIOLOGY | 55 | 1,800 | 0.0% | (805) 461-7080 |
| 86 | ADVANCED RADIOLOGY P A | BALTIMORE | CA | DIAGNOSTIC RADIOLOGY | 161 | 1,680 | 0.0% | (888) 972-9700 |
| 87 | BALBOA NEPHROLOGY MEDICAL GROUP INC | SAN DIEGO | CA | NEPHROLOGY | 80 | 1,644 | 0.0% | (619) 582-4490 |
| 88 | CLEAR HEART-LOVELAND LLC | LOVELAND | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 2 | 1,487 | 0.0% | (970) 900-1707 |
| 89 | EVSLA MEDICAL CORPORATION | VALENCIA | CA | INTERVENTIONAL RADIOLOGY | 3 | 1,376 | 0.0% | (661) 705-9706 |
| 90 | VIDANT MEDICAL GROUP LLC | KENANSVILLE | CA | PHYSICIAN ASSISTANT | 956 | 1,359 | 0.0% | (910) 296-0941 |
| 91 | ORTHOWEST | IRVINE | CA | ORTHOPEDIC SURGERY | 47 | 1,325 | 0.0% | (949) 586-3200 |
| 92 | MONTEREY BAY VASCULAR INC | APTOS | CA | GENERAL SURGERY | 3 | 1,294 | 0.0% | (831) 318-0010 |
| 93 | WESTERN BARIATRIC A MEDICAL CORPORATION | SAN BERNARDINO | CA | PHYSICIAN ASSISTANT | 12 | 497 | 0.0% | (909) 475-8611 |
| 94 | FACULTY PHYSICIANS AND SURGEONS OF LLUSM | LOMA LINDA | CA | DIAGNOSTIC RADIOLOGY | 1317 | 489 | 0.0% | — |
| 95 | FOOTHILLS PAIN MANAGEMENT CLINIC PC | RANCHO CUCAMONGA | CA | PHYSICIAN ASSISTANT | 9 | 475 | 0.0% | (626) 608-7320 |
| 96 | PARAGON PHYSICAL THERAPY AND REHAB LLC | BULLHEAD CITY | CA | ORTHOPEDIC SURGERY | 82 | 448 | 0.0% | — |
| 97 | REGENTS UNIV OF CALIFORNIA UCSF | SAN FRANCISCO | CA | PHYSICIAN ASSISTANT | 277 | 381 | 0.0% | (415) 476-1000 |
| 98 | TRI-CITY ORTHOPAEDIC SURGERY MEDICAL GROUP INC. | OCEANSIDE | CA | ORTHOPEDIC SURGERY | 25 | 253 | 0.0% | (760) 724-9000 |
| 99 | NORCAL PAIN TREATMENT CENTER CORP | TURLOCK | CA | NURSE PRACTITIONER | 10 | 187 | 0.0% | (209) 448-3000 |
| 100 | ADVANCED PAIN DIAGNOSTIC AND SOLUTIONS INC | SACRAMENTO | CA | NURSE PRACTITIONER | 20 | 176 | 0.0% | (916) 953-7571 |
*Share of California's disclosed Medicare-FFS services for Q9967, counted once per clinician. Volume is placed in the state it was billed from, so this page ranks the groups actually billing Q9967 in California — including groups registered elsewhere ("City" is each 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.
How to read this. Figures are Medicare fee-for-service only — not all-payer — from the CMS Medicare Physician & Other Practitioners Public Use File (Part B), CY2024 release. CMS suppresses any provider×code row under 11 beneficiaries, so a missing group means "suppressed," never zero. "Charges" are provider-submitted amounts, not payments. Groups are ranked by measured service volume attributed to clinicians in exactly one group — clinicians affiliated with several groups are listed in rosters but never volume-attributed to a single group — a direct read of the public record, not a rating or quality score. Full method: Methods & Sources.
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 →