Andrew Pak, MD
Internal Medicine Physician · Pomona, CA
Andrew Pak, MD is an internal medicine physician with a practice address in Pomona, California, and NPI 1134700107, issued on Apr 20, 2021. Check the license (California 194251, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Andrew Pak
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 194251 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2277 N Garey Ave, Pomona, CA 91767
- Phone
- (855) 252-7223
- Enumerated
- Apr 20, 2021
- Record last updated
- Jul 11, 2025
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2277 N Garey Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Juan AnguianoLicensed Vocational Nurse1831076173
- Marcela Argueta, LVNLicensed Vocational Nurse1477498004
- Yessica CasasCase Management Registered Nurse1881540920
- Aaron EstradaCase Management Registered Nurse1174400410
- Stephanie GarciaCase Management Registered Nurse1639096605
- Cristina MolinaCase Manager/Care Coordinator1083193429
Verify Andrew Pak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 194251Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
175 Medicare Part D claims for 33 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium21 claims
- Lisinopril12 claims
- Amlodipine Besylate11 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.
Andrew Pak among 17,696 internal medicine physician records in California
Andrew Pak, MD 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 2021, is newer than 92% of them.
- NPI issued2021 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- 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).
37 internal medicine physician records list a practice address in Pomona
They are 37 of the 5,102 NPPES records with a practice address in Pomona, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Pomona → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kyu Ahn, M.D.Pomona, CA 917671427015593
- Samir Anabi, M.D.Pomona, CA 917671790893857
- Kenneth Brown, MDPomona, CA 917671003817537
- Lisa ButlerPomona, CA 917671003885302
- Sarah Cadman, M.D.Pomona, CA 917671427003490
- Jagtar Dhadwal, MDPomona, CA 917671801865563
- Redemption Geronimo, MDPomona, CA 917671497723803
- Jarnail Gugga, M.D.Pomona, CA 917671598769846
Common questions
What is Andrew Pak, MD's NPI number?
Andrew Pak, MD's National Provider Identifier (NPI) is 1134700107, issued on Apr 20, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Pak, MD located?
The NPPES record lists a practice address at 2277 N Garey Ave, Pomona, CA, 91767. Phone: (855) 252-7223. Providers update this record themselves, so call before visiting.
How can I verify Andrew Pak, MD's license?
NPPES lists California license number 194251, 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 Andrew Pak, MD prescribe under Medicare Part D?
In 2024, Andrew Pak, MD had 175 Medicare Part D claims for 33 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.