Who bills the most Hospital discharge day management, more than 30 minutes (99239) to Medicare in California?
Medicare Part B FFS · CY2024 · as published by CMS470 physician groups billed Hospital discharge day management, more than 30 minutes (99239) to Medicare fee-for-service in California in 2024; the top five named groups hold 25% of that volume, and independent (non-hospital-affiliated) groups deliver 0%.
99239 — Hospital discharge day management, more than 30 minutes · 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 | 99239 svcs | Share* | Phone |
|---|---|---|---|---|---|---|---|---|
| 1 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 21,564 | 4.5% | (415) 600-1020 |
| 2 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 19,035 | 4.0% | (916) 681-8852 |
| 3 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 15,659 | 3.3% | (916) 983-7476 |
| 4 | GALEN INPATIENT PHYSICIANS PC | PENSACOLA | CA | HOSPITALIST | 1012 | 12,940 | 2.7% | (850) 416-7000 |
| 5 | PROVIDENCE MEDICAL FOUNDATION | FULLERTON | CA | PHYSICIAN ASSISTANT | 1455 | 12,496 | 2.6% | (714) 871-3006 |
| 6 | THE REGENTS OF THE UNIVERSITY OF CALIFORNIA | LOS ANGELES | CA | INTERNAL MEDICINE | 1424 | 9,427 | 2.0% | (310) 825-7922 |
| 7 | JOHN MUIR PHYSICIAN NETWORK | WALNUT CREEK | CA | FAMILY PRACTICE | 489 | 8,639 | 1.8% | (925) 296-9720 |
| 8 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 8,211 | 1.7% | (650) 723-4000 |
| 9 | PACIFIC HOSPITALIST ASSOCIATES A MEDICAL CORPORATION | NEWPORT BEACH | CA | HOSPITALIST | 91 | 7,966 | 1.7% | (877) 742-4624 |
| 10 | CEDARS-SINAI MEDICAL CARE FOUNDATION | LOS ANGELES | CA | PHYSICIAN ASSISTANT | 1699 | 7,604 | 1.6% | (310) 423-0674 |
| 11 | EISENHOWER MEDICAL CENTER | RANCHO MIRAGE | CA | NURSE PRACTITIONER | 457 | 6,283 | 1.3% | (760) 340-3911 |
| 12 | PACIFIC INPATIENT MEDICAL GROUP | SAN FRANCISCO | CA | INTERNAL MEDICINE | 129 | 6,251 | 1.3% | (415) 485-8824 |
| 13 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 5,899 | 1.2% | (858) 455-9100 |
| 14 | NORTH COUNTY INPATIENT MEDICAL ALLIANCE, A MEDICAL GROUP, INC | ENCINITAS | CA | INTERNAL MEDICINE | 46 | 4,769 | 1.0% | (760) 230-2551 |
| 15 | VITUITY HOSPITALISTS PC | REDDING | CA | HOSPITALIST | 79 | 4,486 | 0.9% | (530) 225-6000 |
| 16 | COMMUNITY HEALTH PARTNERS | FRESNO | CA | INTERNAL MEDICINE | 509 | 3,960 | 0.8% | (559) 459-6000 |
| 17 | COUNTY OF SANTA CLARA | SAN JOSE | CA | INTERNAL MEDICINE | 1001 | 3,948 | 0.8% | (408) 885-5000 |
| 18 | INPATIENT SPECIALISTS OF CALIFORNIA PC | SAN BERNARDINO | CA | INTERNAL MEDICINE | 370 | 3,675 | 0.8% | (909) 883-8711 |
| 19 | EPIC MEDICAL GROUP,INC | SHERMAN OAKS | CA | NURSE PRACTITIONER | 52 | 3,568 | 0.7% | (818) 528-1260 |
| 20 | TORRANCE HEALTH ASSOCIATION INC | TORRANCE | CA | FAMILY PRACTICE | 298 | 3,484 | 0.7% | (310) 257-7260 |
| 21 | HOSPITALISTS OF MODESTO MEDICAL GROUP INC | MODESTO | CA | INTERNAL MEDICINE | 87 | 3,459 | 0.7% | (209) 576-3525 |
| 22 | REGENTS OF THE UNIV OF CA | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 1608 | 3,333 | 0.7% | (877) 827-7463 |
| 23 | PENINSULA HOSPITALIST ASSOCIATES INC | BURLINGAME | CA | HOSPITALIST | 35 | 3,195 | 0.7% | (650) 696-3520 |
| 24 | MEMORIALCARE MEDICAL FOUNDATION | LONG BEACH | CA | FAMILY PRACTICE | 549 | 3,133 | 0.7% | (562) 346-2222 |
| 25 | ENLOE MEDICAL CENTER | CHICO | CA | DIAGNOSTIC RADIOLOGY | 362 | 3,067 | 0.6% | (530) 332-4470 |
| 26 | CENTRAL COAST IN-PATIENT CONSULTANTS INC | SANTA MARIA | CA | INTERNAL MEDICINE | 33 | 3,017 | 0.6% | (805) 739-3000 |
| 27 | PROVIDENCE FACEY MEDICAL FOUNDATION | MISSION HILLS | CA | FAMILY PRACTICE | 320 | 2,893 | 0.6% | (818) 365-9531 |
| 28 | MONTEREY HOSPITALIST MEDICAL GROUP | MONTEREY | CA | HOSPITALIST | 35 | 2,870 | 0.6% | (831) 625-4311 |
| 29 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SAN DIEGO | CA | DIAGNOSTIC RADIOLOGY | 2057 | 2,825 | 0.6% | (800) 926-8273 |
| 30 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SAN FRANCISCO | CA | HOSPITALIST | 746 | 2,691 | 0.6% | (415) 476-4029 |
| 31 | PROVIDENCE SAINT JOHNS MEDICAL FOUNDATION | SANTA MONICA | CA | PHYSICIAN ASSISTANT | 287 | 2,500 | 0.5% | (310) 829-6789 |
| 32 | PROVIDENCE MEDICAL INSTITUTE | TORRANCE | CA | INTERNAL MEDICINE | 339 | 2,411 | 0.5% | (310) 303-7496 |
| 33 | HOSPITALIST CORPORATION OF INLAND EMPIRE | POMONA | CA | INTERNAL MEDICINE | 24 | 2,191 | 0.5% | (909) 630-7158 |
| 34 | THE REGENTS OF THE UNIVERSITY OF CALIFORNIA-IRVINE | ORANGE | CA | INTERNAL MEDICINE | 96 | 2,122 | 0.4% | (714) 456-7890 |
| 35 | HOSPITALIST MEDICINE PHYSICIANS OF CALIFORNIA INC | FREMONT | CA | INTERNAL MEDICINE | 115 | 2,087 | 0.4% | (510) 797-1111 |
| 36 | SHASTA REGIONAL MEDICAL GROUP INC | REDDING | CA | NURSE PRACTITIONER | 39 | 2,070 | 0.4% | (530) 605-4260 |
| 37 | XIMED HOSPITALISTS, INC. | LA JOLLA | CA | INTERNAL MEDICINE | 36 | 2,059 | 0.4% | (858) 457-4123 |
| 38 | MARSHALL MEDICAL CENTER | PLACERVILLE | CA | PHYSICIAN ASSISTANT | 154 | 2,050 | 0.4% | — |
| 39 | SVMHS CLINICS | SALINAS | CA | PHYSICIAN ASSISTANT | 245 | 2,045 | 0.4% | (831) 422-3636 |
| 40 | PACIFIC INPATIENT PHYSICIANS | VENTURA | CA | INTERNAL MEDICINE | 33 | 2,035 | 0.4% | (805) 652-5652 |
| 41 | SHARP REES-STEALY MEDICAL GROUP INC | SAN DIEGO | CA | PHYSICIAN ASSISTANT | 872 | 1,984 | 0.4% | (858) 499-2600 |
| 42 | SCRIPPS HEALTH INPATIENT PROVIDERS MEDICAL GROUP INC | SAN DIEGO | CA | INTERNAL MEDICINE | 205 | 1,979 | 0.4% | (619) 294-8111 |
| 43 | QUANTUM HEALTHCARE MEDICAL ASSOCIATES INC | COLTON | CA | INTERNAL MEDICINE | 108 | 1,848 | 0.4% | (909) 580-1000 |
| 44 | SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP | LOS ANGELES | CA | INTERNAL MEDICINE | 11157 | 1,816 | 0.4% | (800) 954-8000 |
| 45 | CHEST AND CRITICAL CARE CONSULTANTS A MEDICAL GROUP | TUSTIN | CA | INTERNAL MEDICINE | 69 | 1,803 | 0.4% | (714) 573-8200 |
| 46 | OROHEALTH CORPORATION A NON PROFIT HEALTHCARE SYSTEM | OROVILLE | CA | INTERNAL MEDICINE | 124 | 1,733 | 0.4% | (530) 532-8654 |
| 47 | VALLEY HOSPITALIST MEDICAL GROUP, INC | VISALIA | CA | FAMILY PRACTICE | 34 | 1,706 | 0.4% | (559) 909-0264 |
| 48 | SANSUM CLINIC | SANTA BARBARA | CA | INTERNAL MEDICINE | 322 | 1,688 | 0.4% | (805) 681-7500 |
| 49 | ALAMEDA HEALTH SYSTEM | OAKLAND | CA | INTERNAL MEDICINE | 601 | 1,666 | 0.3% | (510) 437-4800 |
| 50 | ALLURE MEDICAL GROUP A PROFESSIONAL CORPORATION | THOUSAND OAKS | CA | INTERNAL MEDICINE | 7 | 1,663 | 0.3% | (866) 545-2570 |
| 51 | FACULTY PHYSICIANS AND SURGEONS OF LLUSM | LOMA LINDA | CA | DIAGNOSTIC RADIOLOGY | 1317 | 1,658 | 0.3% | — |
| 52 | DESERT VALLEY MEDICAL GROUP INC | VICTORVILLE | CA | NURSE PRACTITIONER | 76 | 1,528 | 0.3% | (760) 241-8000 |
| 53 | ARCADIA HOSPITALIST MEDICAL GROUP INC | ARCADIA | CA | INTERNAL MEDICINE | 32 | 1,526 | 0.3% | (626) 898-8000 |
| 54 | QUANTUM BAY AREA HOSPITALIST MEDICAL GROUP INC | MOUNTAIN VIEW | CA | INTERNAL MEDICINE | 57 | 1,506 | 0.3% | (650) 940-7000 |
| 55 | CENTRIC HEALTH | BAKERSFIELD | CA | INTERNAL MEDICINE | 63 | 1,465 | 0.3% | — |
| 56 | SOUTHERN CALIFORNIA HOSPITALIST NETWORK MEDICAL GROUP INC | ORANGE | CA | INTERNAL MEDICINE | 74 | 1,444 | 0.3% | (714) 202-2330 |
| 57 | RIVERSIDE FACULTY MEDICAL GROUP INC | MORENO VALLEY | CA | INTERNAL MEDICINE | 79 | 1,441 | 0.3% | (951) 656-1500 |
| 58 | CENTINELA HOSPITALIST MEDICAL GROUP INC | INGLEWOOD | CA | INTERNAL MEDICINE | 11 | 1,398 | 0.3% | (310) 673-4660 |
| 59 | PIH HEALTH PHYSICIANS | WHITTIER | CA | INTERNAL MEDICINE | 606 | 1,237 | 0.3% | (562) 698-0811 |
| 60 | CITY OF HOPE MEDICAL FOUNDATION | DUARTE | CA | NURSE PRACTITIONER | 942 | 1,155 | 0.2% | (626) 256-4673 |
| 61 | PERMANENTE MEDICAL GROUP INC | SANTA CLARA | CA | INTERNAL MEDICINE | 10890 | 1,081 | 0.2% | (408) 851-1000 |
| 62 | PROHEALTH PARTNERS, A MEDICAL GROUP | LONG BEACH | CA | INTERNAL MEDICINE | 228 | 1,070 | 0.2% | (562) 495-4952 |
| 63 | NORTHBAY PHYSICIANS SURGERY CENTER, LLC | FAIRFIELD | CA | PHYSICIAN ASSISTANT | 344 | 1,011 | 0.2% | (707) 429-3600 |
| 64 | KANSAL INC | WEST HOLLYWOOD | CA | INTERNAL MEDICINE | 19 | 956 | 0.2% | (800) 233-2771 |
| 65 | AARON K TRAN MD INC | TORRANCE | CA | INTERNAL MEDICINE | 5 | 944 | 0.2% | (310) 540-7676 |
| 66 | MERCED HOSPITALIST MEDICAL GROUP INC | MERCED | CA | INTERNAL MEDICINE | 41 | 913 | 0.2% | (209) 564-5000 |
| 67 | USC CARE MEDICAL GROUP INC | LOS ANGELES | CA | DIAGNOSTIC RADIOLOGY | 1374 | 892 | 0.2% | (800) 872-2273 |
| 68 | FIRST CHOICE PHYSICIAN PARTNERS | PALM SPRINGS | CA | PHYSICIAN ASSISTANT | 148 | 889 | 0.2% | — |
| 69 | ALAMEDA INPATIENT MEDICAL INC | ALAMEDA | CA | INTERNAL MEDICINE | 22 | 803 | 0.2% | (510) 814-4397 |
| 70 | ACUTE CARE ASSOCIATES OF CALIFORNIA PC | WILDOMAR | CA | INTERNAL MEDICINE | 54 | 801 | 0.2% | (951) 677-1111 |
| 71 | PALOMAR HOSPITALIST MEDICAL GROUP INC | ESCONDIDO | CA | INTERNAL MEDICINE | 50 | 797 | 0.2% | (310) 379-2134 |
| 72 | LIFE MEDICAL PRACTITIONERS | SAN DIEGO | CA | INTERNAL MEDICINE | 21 | 786 | 0.2% | (818) 823-6717 |
| 73 | EMERGENCY AND ACUTE CARE MEDICAL CORPORATION | SAN DIEGO | CA | INTERNAL MEDICINE | 450 | 760 | 0.2% | (858) 939-3400 |
| 74 | ASAD U KHAJA MD INC | TORRANCE | CA | INTERNAL MEDICINE | 8 | 744 | 0.2% | 8774861368801 |
| 75 | MY MD INC | ORANGE | CA | NURSE PRACTITIONER | 7 | 734 | 0.2% | (714) 356-6105 |
| 76 | ALPHA HOSPITALIST GROUP INC | FOUNTAIN VALLEY | CA | NURSE PRACTITIONER | 12 | 722 | 0.2% | (714) 966-7200 |
| 77 | FAROOQUI MEDICAL ASSOCIATES INC | NORTHRIDGE | CA | INTERNAL MEDICINE | 2 | 718 | 0.1% | (818) 885-8500 |
| 78 | RAZI MEDICAL GROUP INC | VICTORVILLE | CA | NURSE PRACTITIONER | 8 | 700 | 0.1% | (760) 713-6969 |
| 79 | PACIFIC COAST REHABILITATION | ESCONDIDO | CA | PHYSICAL MEDICINE AND REHABILITATION | 7 | 699 | 0.1% | (442) 277-6100 |
| 80 | ARROYO OAKS MEDICAL ASSOCIATES INC | THOUSAND OAKS | CA | INTERNAL MEDICINE | 11 | 695 | 0.1% | 80549510665000 |
| 81 | SAINT AGNES MEDICAL FOUNDATION | FRESNO | CA | INTERNAL MEDICINE | 155 | 683 | 0.1% | (559) 450-5777 |
| 82 | 24 ON PHYSICIANS OF CALIFORNIA PC | EL CENTRO | CA | INTERNAL MEDICINE | 59 | 683 | 0.1% | (760) 339-4045 |
| 83 | SYCAMORE HILL HOSPITALIST MEDICAL GROUP INC | LOS ANGELES | CA | INTERNAL MEDICINE | 17 | 669 | 0.1% | (213) 413-3000 |
| 84 | MONTEREY BAY OBSERVATION MEDICINE | MONTEREY | CA | EMERGENCY MEDICINE | 30 | 606 | 0.1% | (831) 625-4900 |
| 85 | BEAVER MEDICAL GROUP P C | REDLANDS | CA | FAMILY PRACTICE | 247 | 588 | 0.1% | (909) 294-3682 |
| 86 | PROVIDENCE HEALTHCARE PARTNERS INC | RIVERSIDE | CA | INTERNAL MEDICINE | 26 | 585 | 0.1% | (951) 788-3000 |
| 87 | HEALTHCARE CROSSING CORPORATION | MURRIETA | CA | INTERNAL MEDICINE | 17 | 578 | 0.1% | (951) 894-4665 |
| 88 | EL CAMINO HEALTH MEDICAL NETWORK LLC | SAN JOSE | CA | PHYSICIAN ASSISTANT | 199 | 564 | 0.1% | (408) 871-3400 |
| 89 | TEMECULA VALLEY HOSPITALIST MEDICAL GROUP INC | TEMECULA | CA | INTERNAL MEDICINE | 28 | 557 | 0.1% | (951) 331-2200 |
| 90 | SAN FERNANDO VALLEY MEDICAL GROUP INC | SHERMAN OAKS | CA | INTERNAL MEDICINE | 13 | 555 | 0.1% | (818) 325-0200 |
| 91 | PALOMA INCARE | MISSION VIEJO | CA | INTERNAL MEDICINE | 11 | 553 | 0.1% | (949) 364-7756 |
| 92 | HOSPITALISTS OF THE PENINSULA | BURLINGAME | CA | INTERNAL MEDICINE | 3 | 547 | 0.1% | (408) 988-4888 |
| 93 | JOSEPH TERRAZZINO M D INC | VALENCIA | CA | PHYSICAL MEDICINE AND REHABILITATION | 3 | 546 | 0.1% | (661) 254-0172 |
| 94 | ST JOSEPH HOSPITALIST MEDICAL GROUP INC | BURBANK | CA | INTERNAL MEDICINE | 12 | 543 | 0.1% | (818) 843-5111 |
| 95 | RANCHO FAMILY MEDICAL GROUP INC | TEMECULA | CA | PHYSICIAN ASSISTANT | 104 | 536 | 0.1% | (951) 676-4193 |
| 96 | CENTURION VALLEY HEALTHCARE INC | MODESTO | CA | NEPHROLOGY | 2 | 529 | 0.1% | (209) 910-0701 |
| 97 | SUPERIOR HOSPITALIST MEDICAL GROUP INC | LOS ANGELES | CA | INTERNAL MEDICINE | 75 | 521 | 0.1% | (424) 338-8000 |
| 98 | APOLLOMED HOSPITALISTS A MEDICAL CORPORATION | MONTEREY PARK | CA | INTERNAL MEDICINE | 32 | 514 | 0.1% | (818) 839-5200 |
| 99 | VITUITY-CALIFORNIA OBSERVATION SERVICES PC | ROSEVILLE | CA | EMERGENCY MEDICINE | 80 | 512 | 0.1% | (916) 781-1000 |
| 100 | UNIVERSITY OF CALIFORNIA SFGH MEDICAL GROUP | SAN FRANCISCO | CA | INTERNAL MEDICINE | 593 | 499 | 0.1% | (628) 206-4774 |
*Share of California's disclosed Medicare-FFS services for 99239, counted once per clinician. Volume is placed in the state it was billed from, so this page ranks the groups actually billing 99239 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 →