Ishita Aggarwal, MD
Rheumatology Physician · San Francisco, CA
Ishita Aggarwal, MD is a rheumatology physician with a practice address in San Francisco, California, and NPI 1518385699, issued on Apr 4, 2014. Check the license (California A138573, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ishita Aggarwal
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A138573 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2100 Webster St Ste 112, San Francisco, CA 94115
- Phone
- (415) 923-3060
- Enumerated
- Apr 4, 2014
- Record last updated
- Aug 29, 2025
- Fax
- (415) 749-0841
- Medicare enrollment
- Enrolled (PECOS I20170707002444); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2014
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 2100 Webster St Ste 112
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lourdes Gatchalian, REGISTERED NURSERegistered Nurse1104318120
- Ma Liezel Nidua, RNRegistered Nurse1457946469
- Maria Rivera, REGISTERED NURSERegistered Nurse1437760584
- Lita Zigounakis, REGISTERED NURSERegistered Nurse1740768282
Verify Ishita Aggarwal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A138573Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% fewer Medicare Part D claims than the average rheumatology physician in 2024
1,413 Medicare Part D claims for 173 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Methotrexate318 claims
- Prednisone251 claims
- Hydroxychloroquine Sulfate129 claims
- Allopurinol59 claims
- Alendronate Sodium51 claims
- Enbrel Sureclick50 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $2,977.31
128 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Pacific Rheumatology Associates Medical GroupSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ishita Aggarwal among 926 rheumatology physician records in California
Ishita Aggarwal, MD is one of 926 rheumatology physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 79% of them.
- NPI issued2014 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2014 · median 2003 among the 641 with a school on file
- Record last updated2025 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
All 926 in California → Every provider in San Francisco → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Nancy Carteron, M.D.San Francisco, CA 941151669582458
- Benedict Chou, M.D.San Francisco, CA 941151770759375
- William Dibrielle, MDSan Francisco, CA 941151043483837
- Aileen Dillon, MB, BCHSan Francisco, CA 941151912071523
- Walford Fessel, MDSan Francisco, CA 941151649344961
- Jeffrey Fong, MDSan Francisco, CA 941151093893695
- Shelley Marder, M.D.San Francisco, CA 941151184648636
- Kerstin Morehead, M.D.San Francisco, CA 941151235244963
Common questions
What is Ishita Aggarwal, MD's NPI number?
Ishita Aggarwal, MD's National Provider Identifier (NPI) is 1518385699, issued on Apr 4, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Ishita Aggarwal, MD located?
The NPPES record lists a practice address at 2100 Webster St Ste 112, San Francisco, CA, 94115. Phone: (415) 923-3060. Providers update this record themselves, so call before visiting.
How can I verify Ishita Aggarwal, MD's license?
NPPES lists California license number A138573, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ishita Aggarwal, MD prescribe under Medicare Part D?
In 2024, Ishita Aggarwal, MD had 1,413 Medicare Part D claims for 173 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.