Charleen Pham, D.O.
Internal Medicine Physician · Anaheim, CA
Charleen Pham, D.O. is an internal medicine physician with a practice address in Anaheim, California, and NPI 1689164642, issued on May 15, 2018. Check the license (California 20A22234, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Charleen Pham
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A22234 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3440 E LA Palma Ave, Anaheim, CA 92806
- Phone
- (833) 574-2273
- Enumerated
- May 15, 2018
- Record last updated
- Jan 7, 2025
- Medicare enrollment
- Enrolled (PECOS I20250121001340); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 3440 E LA Palma Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Charleen Pham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A22234Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
57 Medicare Part D claims for 36 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 58.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Southern California Permanente Medical GroupAnaheim, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charleen Pham among 17,696 internal medicine physician records in California
Charleen Pham, D.O. 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. Its NPI, issued in 2018, is newer than 84% of them.
- NPI issued2018 · 84% of these records are older, 14% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2018 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 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).
189 internal medicine physician records list a practice address in Anaheim
They are 189 of the 9,018 NPPES records with a practice address in Anaheim, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Anaheim → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ricardo Bardales MendozaAnaheim, CA 928061801103130
- Yin Chu Chang, M.D.Anaheim, CA 928061487979043
- Kristin Cummings, MDAnaheim, CA 928061700997095
- Annie Harrington, M.D.Anaheim, CA 928061275719742
- Richard Hughes, M.D.Anaheim, CA 928061003255837
- Hyun Doo Lee, M.D.Anaheim, CA 928061760828438
- Michael LiuAnaheim, CA 928061881896520
- Alireza Noorian, MDAnaheim, CA 928061467683508
Common questions
What is Charleen Pham, D.O.'s NPI number?
Charleen Pham, D.O.'s National Provider Identifier (NPI) is 1689164642, issued on May 15, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Charleen Pham, D.O. located?
The NPPES record lists a practice address at 3440 E LA Palma Ave, Anaheim, CA, 92806. Phone: (833) 574-2273. Providers update this record themselves, so call before visiting.
How can I verify Charleen Pham, D.O.'s license?
NPPES lists California license number 20A22234, 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 Charleen Pham, D.O. prescribe under Medicare Part D?
In 2024, Charleen Pham, D.O. had 57 Medicare Part D claims for 36 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Charleen Pham, D.O.'s MIPS final score?
The 2023 MIPS final score is 58.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.