Amanda B. Grantham, M.D.
Internal Medicine Physician · Los Angeles, CA
Amanda B. Grantham, M.D. is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1962532721, issued on Mar 7, 2007. Check the license (California C54102, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Amanda B. Grantham
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- C54102 CA
43348 CO
Self-reported in NPPES; status is on the state search - Practice location
- 11303 W Washington Blvd, Los Angeles, CA 90066
- Phone
- (310) 391-7281
- Enumerated
- Mar 7, 2007
- Record last updated
- Dec 2, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (310) 390-9851
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 11303 W Washington Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Amanda B. Grantham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C54102Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Amanda B. Grantham among 17,696 internal medicine physician records in California
Amanda B. Grantham, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2010 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,423 internal medicine physician records list a practice address in Los Angeles
They are 1,423 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,696 internal medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 17,696 in California → Every provider in Los Angeles → Internal Medicine Physician nationwide →
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- Elizabeth Ko, M.D.Los Angeles, CA 900661801189048
- Justine Korolyov, M.D.Los Angeles, CA 900661124461736
- Ricky Onofre-Vasquez, M.D.Los Angeles, CA 900661750353892
- Dimitra PapaspyridiLos Angeles, CA 900661538574462
Common questions
What is Amanda B. Grantham, M.D.'s NPI number?
Amanda B. Grantham, M.D.'s National Provider Identifier (NPI) is 1962532721, issued on Mar 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Amanda B. Grantham, M.D. located?
The NPPES record lists a practice address at 11303 W Washington Blvd, Los Angeles, CA, 90066. Phone: (310) 391-7281. Providers update this record themselves, so call before visiting.
How can I verify Amanda B. Grantham, M.D.'s license?
NPPES lists California license number C54102, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.