State Specialty Directory

Geriatric Medicine (Internal Medicine) Physician in CA

Federal CMS data for 92 geriatric medicine (internal medicine) physician providers across CA. Includes Medicare utilization, Open Payments industry funding, and PECOS enrollment status.

92
Providers
Median industry payments
$1,085
92
Geriatric Medicine (Internal Medicine) Physician Providers
in CA
$1,085
Median Industry Payments
per provider (2018–2024)
1,639
Median Medicare Services
fee-for-service claims
How to read this directory: Providers are listed by Medicare service volume, which reflects only Medicare fee-for-service patients (typically 65+). This does not represent total practice volume. Industry payments span multiple years and payment types — they are legal and do not indicate wrongdoing. Geriatric Medicine (Internal Medicine) Physician includes multiple subspecialties with different practice patterns. Learn more →
Showing top 50 of 92 providers, ranked by Medicare service volume. Search by city to narrow results.

Geriatric Medicine (Internal Medicine) Physician Providers — CA

NPPES · Open Payments · Medicare
Provider City Medicare Volume Beneficiaries* Top Procedure Industry Payments Payment Type Coverage
HENRY, STEPHEN M.D. Pasadena 118,248 6,082 Testosterone enanthate injection $24,333 (2018-2024) Food & Beverage (91%) Very High
CHEEMA, CHANDAN MD Yuba City 19,856 811 Abatacept infusion (Orencia) $112 (2020-2024) Food & Beverage (100%) Very High
MANN, RUPINDER M D INC Rancho Mirage 19,363 4,599 Chronic care management, first 20 min/month $1,944 (2020-2024) Food & Beverage (100%) Very High
HEKMATI, ARMAN M.D. Los Angeles 16,071 7,862 Office visit, established patient (30-39 min) $13,092 (2018-2024) Food & Beverage (98%) Very High
SILVERSTEIN, LAURENCE M.D. Tarzana 15,881 9,990 Blood draw (venipuncture) $1,855 (2018-2024) Food & Beverage (100%) Very High
SIVALINGAM, KANAGARATNAM M.D. Lancaster 14,479 5,308 Office visit, established patient (30-39 min) $7,817 (2018-2024) Food & Beverage (100%) Very High
KHALID, SHAFI M.D. Poway 13,629 1,432 Steroid injection (triamcinolone) $3,411 (2018-2024) Food & Beverage (85%) Very High
GILL, KULDIP M.D. Grass Valley 13,053 5,270 Chronic care management, first 20 min/month $7,395 (2018-2024) Food & Beverage (68%) Very High
BAO, YERAN M.D. Walnut Creek 12,186 1,228 Denosumab injection (Prolia/Xgeva) $4,407 (2018-2024) Food & Beverage (100%) Very High
FELDMAN, ROBERT M.D. Laguna Hills 8,829 1,683 Denosumab injection (Prolia/Xgeva) $1,039,982 (2018-2024) Consulting (98%) Very High
KARAPETIAN, MICHAEL M.D. Los Angeles 8,603 1,119 Nursing facility visit, moderate complexity $215 (2018-2024) Food & Beverage (100%) Very High
TRAN, DAN M.D. Rosemead 7,798 4,660 Office visit, established patient (20-29 min) $10,975 (2018-2024) Food & Beverage (97%) Very High
SONG, CHAEWON MD Garden Grove 7,409 2,926 Nursing facility visit, low complexity $22,316 (2018-2024) Food & Beverage (98%) Very High
GORBATY, ISAAC M.D. Tarzana 6,976 3,658 Urinalysis, manual $340 (2019-2024) Food & Beverage (89%) Very High
TRINH, DZUNG MD Fresno 6,588 3,765 Nursing facility visit, low complexity $2,856 (2019-2024) Food & Beverage (100%) Very High
CHIEN, OSCAR M.D. San Gabriel 6,192 2,085 Hospital follow-up visit, moderate complexity $255,128 (2018-2024) Consulting (89%) Very High
CHIEN, NORMAN MD Pasadena 5,889 1,422 Telephone medical discussion, 21-30 minutes $5,151 (2018-2024) Food & Beverage (100%) Very High
DUONG, DAT M.D. Westminster 5,111 2,089 Chronic care management, first 20 min/month $18,490 (2018-2024) Food & Beverage (89%) Very High
AMACHER, KATHRYN DO Vacaville 4,830 2,124 Chronic care management, first 20 min/month $379 (2018-2023) Food & Beverage (100%) Very High
NGUYEN, RICHARD M.D. San Diego 4,488 992 Nursing facility visit, moderate complexity $1,110 (2018-2023) Food & Beverage (59%) Very High
GROSSMAN, STEPHEN M.D. Fresno 4,118 1,675 Nursing facility visit, moderate complexity $529 (2018-2024) Food & Beverage (57%) Very High
KAZAK, MICHAEL MD Santa Maria 4,102 1,689 Office visit, established patient (30-39 min) $783 (2018-2023) Food & Beverage (100%) Very High
DATTOMA, LUCIA MD Simi Valley 3,934 1,653 Denosumab injection (Prolia/Xgeva) $23 (2022-2022) Food & Beverage (100%) Very High
DANIELYAN, NOUNEH M.D. Los Angeles 3,884 2,449 Office visit, established patient (20-29 min) $566 (2018-2023) Food & Beverage (84%) Very High
MEMON, PARVEZ MD Bakersfield 3,440 1,017 Nursing facility visit, moderate complexity $1,858 (2018-2024) Food & Beverage (100%) Very High
SADDY, SHEHAB MD Monterey 3,349 1,507 Office visit, established patient (30-39 min) $8,347 (2018-2024) Food & Beverage (87%) Very High
HSU, LINDA MD Downey 3,310 1,029 Hospital follow-up visit, moderate complexity $1,951 (2018-2024) Food & Beverage (93%) Very High
GHALY, AZMY MEDICAL DOCTOR Los Angeles 3,276 849 Hospital follow-up visit, moderate complexity $3,850 (2018-2024) Food & Beverage (100%) Very High
PATEL, AVAN MD Camarillo 3,235 1,574 Office visit, established patient (30-39 min) $1,023 (2020-2024) Food & Beverage (100%) Very High
KAJANI, SIKANDER M.D. Northridge 2,993 1,493 Office visit, established patient (30-39 min) $7,729 (2018-2024) Food & Beverage (100%) Very High
RAO, SEEMA MD. Santa Rosa 2,935 1,011 Nursing facility visit, moderate complexity $35 (2018-2019) Food & Beverage (100%) Very High
CHAK, KATHLEEN Pismo Beach 2,925 2,041 Office visit, established patient (30-39 min) $313 (2022-2024) Food & Beverage (100%) Very High
MAYORGA, RACHEL MD Healdsburg 2,887 1,030 Denosumab injection (Prolia/Xgeva) $823 (2018-2023) Food & Beverage (100%) Very High
NIGUIDULA, TROY MD National City 2,732 1,353 Office visit, established patient (30-39 min) $3,622 (2018-2024) Food & Beverage (100%) Very High
RASANIA, SURAJ M.D. Upland 2,647 2,035 Office visit, established patient (30-39 min) $11,694 (2018-2024) Food & Beverage (84%) Very High
VALIVETI, VINOD M.D. Oxnard 2,527 1,283 Nursing facility visit, moderate complexity $784 (2018-2024) Food & Beverage (100%) Very High
LEONARD, SUSAN M.D. Los Angeles 2,281 735 Prolonged nursing facility care, each 15 minutes $64 (2023-2023) Food & Beverage (100%) Very High
DOHERTY, HEATHER M.D. La Jolla 2,270 802 Denosumab injection (Prolia/Xgeva) $1,102 (2018-2023) Food & Beverage (58%) Very High
CHANG, ALVIN M.D. Tustin 2,137 1,108 Home visit, established patient, low complexity $7,538 (2018-2024) Food & Beverage (100%) Very High
KAMALI, AZIZ M.D. Stockton 1,875 776 Office visit, established patient (10-19 min) $21,252 (2018-2024) Food & Beverage (100%) Very High
KIM, SEUNG M.D. Los Angeles 1,850 1,282 Telephone medical discussion, 5-10 minutes $280 (2019-2024) Food & Beverage (88%) Very High
SHAHBAZ, MAJID M.D. La Mesa 1,793 1,093 Office visit, established patient (20-29 min) $11,404 (2018-2024) Food & Beverage (100%) Very High
RAWI, TAIB D.O. San Diego 1,744 707 Remote patient monitoring management, 20 min/month $37 (2018-2020) Food & Beverage (100%) Very High
NGUYEN, CHRISTOPHER MD Mission Viejo 1,715 1,107 Office visit, established patient (30-39 min) $4,223 (2018-2024) Food & Beverage (99%) Very High
OLELEWE, SARAH M.D. Hawthorne 1,670 1,019 Office visit, established patient (30-39 min) $57 (2019-2024) Food & Beverage (80%) Very High
THAPER, MOHINDERPAL MD Poway 1,643 685 Nursing facility visit, moderate complexity $95 (2018-2023) Food & Beverage (100%) Very High
BRAVERMAN, IRA MD National City 1,635 1,327 Blood draw (venipuncture) $6,590 (2018-2024) Food & Beverage (90%) Very High
ASHTARI, MOZHGAN M.D. Laguna Hills 1,555 648 Office visit, established patient (30-39 min) $3,062 (2018-2024) Consulting (52%) Very High
NGUYEN-DINH, THANH M.D. San Leandro 1,554 1,529 Office visit, established patient (20-29 min) $125 (2018-2024) Food & Beverage (100%) Very High
GUILLINTA, PAULO M.D. Chula Vista 1,462 1,297 Electrocardiogram (EKG), 12-lead $38,951 (2018-2024) Consulting (55%) Very High
Note: Geriatric Medicine (Internal Medicine) Physician encompasses multiple subspecialties with different practice patterns. Differences in payment amounts and procedure volumes may reflect subspecialty focus rather than practice quality. Consider viewing individual profiles for full context.
Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →