Anna Ter-Zakarian, MD
Hematology & Oncology Physician · South Pasadena, CA
Anna Ter-Zakarian, MD is a hematology & oncology physician with a practice address in South Pasadena, California, and NPI 1174085492, issued on Apr 4, 2019. Check the license (California A178247, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Anna Ter-Zakarian
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A178247 CA
Self-reported in NPPES; status is on the state search - Practice location
- 209 Fair Oaks Ave, South Pasadena, CA 91030
- Phone
- (858) 554-8779
- Enumerated
- Apr 4, 2019
- Record last updated
- Jul 17, 2025
- Medicare enrollment
- Enrolled (PECOS I20250725000234); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 209 Fair Oaks Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Helen Chen, MDRadiation Oncology Physician1578546388
- Samuel Chung, M.D.Hematology & Oncology Physician1609057157
- Loretta Erhunmwunsee, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1336307735
- Wei Feng, MDEndocrinology, Diabetes & Metabolism Physician1043277601
- Abigail Fong, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1265886691
Verify Anna Ter-Zakarian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A178247Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
104 Medicare Part D claims for 32 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
Most prescribed
- Anastrozole15 claims
- Prednisone12 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: $1,093.57
32 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 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
- City OF Hope Medical FoundationSouth Pasadena, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anna Ter-Zakarian among 1,583 hematology & oncology physician records in California
Anna Ter-Zakarian, MD is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 95% of them.
- NPI issued2019 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2019 · median 2003 among the 1,124 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in South Pasadena → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Samuel Chung, M.D.South Pasadena, CA 910301609057157
- Daniel Kim, M.D.South Pasadena, CA 910301033291562
- Margaret Odonnell, MDSouth Pasadena, CA 910301316955230
- Kelly Khai Li Yap, M.D.South Pasadena, CA 910301346560786
- Christina Yeon, M.D.South Pasadena, CA 910301235186354
- Vasanth Kumar, M.D.La Canada, CA 910111689657496
- Vaibhav Agrawal, M.D.Duarte, CA 910101538402565
- Mary Cianfrocca, DODuarte, CA 910101821050550
Common questions
What is Anna Ter-Zakarian, MD's NPI number?
Anna Ter-Zakarian, MD's National Provider Identifier (NPI) is 1174085492, issued on Apr 4, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Anna Ter-Zakarian, MD located?
The NPPES record lists a practice address at 209 Fair Oaks Ave, South Pasadena, CA, 91030. Phone: (858) 554-8779. Providers update this record themselves, so call before visiting.
How can I verify Anna Ter-Zakarian, MD's license?
NPPES lists California license number A178247, 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 Anna Ter-Zakarian, MD prescribe under Medicare Part D?
In 2024, Anna Ter-Zakarian, MD had 104 Medicare Part D claims for 32 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.