Susan Claster, MD
Hematology (Internal Medicine) Physician · Los Angeles, CA
Susan Claster, MD is a hematology (internal medicine) physician with a practice address in Los Angeles, California, and NPI 1659471829, issued on Sep 25, 2006. Check the license (California G036171, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Susan Claster
- Credential
- MD
- Primary taxonomy
- Hematology (Internal Medicine) Physician 207RH0000X
- License number
- G036171 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1670 E 120TH St, Los Angeles, CA 90059
- Phone
- (424) 338-2801
- Enumerated
- Sep 25, 2006
- Record last updated
- Dec 23, 2024
- Medicare enrollment
- Enrolled (PECOS I20050211000534); accepts Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 1976
- Entity
- Type 1 · individual
8 nearest hematology (internal medicine) physician records → All 175 in California → Look up another NPI →
Also registered at 1670 E 120TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christian Achikam, OTR/LOccupational Therapist1609396415
- Celine Adriano, DOStudent in an Organized Health Care Education/Training Program1164226924
- Fareedat Ajibade, M.D.Family Medicine Physician1245692730
- Juliana AjokuAmbulatory Care Registered Nurse1013446988
- Olajumoke AkinsanyaRegistered Nurse1730894767
- Marisela Alvarez, LVNLicensed Vocational Nurse1386350536
Verify Susan Claster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G036171Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average hematology (internal medicine) physician in 2024
79 Medicare Part D claims, against an average of 496 among the 1,036 providers of this specialty who prescribed in Part D. 34 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen24 claims
- Hydroxyurea24 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.
Susan Claster among 175 hematology (internal medicine) physician records in California
Susan Claster, MD is one of 175 hematology (internal medicine) physician records with a practice address in California. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 65% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated1976 · median 2006 among the 135 with a school on file
- Record last updated2024 · 34% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology (Internal Medicine) Physician providers in California
There are 175 hematology (internal medicine) physician records in California.
All 175 in California → Every provider in Los Angeles → Hematology (Internal Medicine) Physician nationwide →
The 8 hematology (internal medicine) physician records with the nearest ZIP codes
- Hitomi Hosoya, MDLos Angeles, CA 900481265895817
- Noah Merin, M.D.West Hollywood, CA 900481659547487
- Robert Chen, MDLos Angeles, CA 900391083751358
- Donald Feinstein, M.D.Los Angeles, CA 900331861429581
- Parkash Gill, M.D.Los Angeles, CA 900331609972983
- Nneka Nwachukwu, MDLos Angeles, CA 900331821594904
- Zaw Myint, M.D.Los Angeles, CA 900891225243348
- Caitlin O'NeillLos Angeles, CA 900891497174262
Common questions
What is Susan Claster, MD's NPI number?
Susan Claster, MD's National Provider Identifier (NPI) is 1659471829, issued on Sep 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Susan Claster, MD located?
The NPPES record lists a practice address at 1670 E 120TH St, Los Angeles, CA, 90059. Phone: (424) 338-2801. Providers update this record themselves, so call before visiting.
How can I verify Susan Claster, MD's license?
NPPES lists California license number G036171, 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 Susan Claster, MD prescribe under Medicare Part D?
In 2024, Susan Claster, MD had 79 Medicare Part D claims; the average among hematology (internal medicine) physician prescribers was 496. 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.