Ruth Wang, MD, MED
Internal Medicine Physician · Alpine, CA
Ruth Wang, MD, MED is an internal medicine physician with a practice address in Alpine, California, and NPI 1033791926, issued on Apr 21, 2021. Check the license (California A201772, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ruth Wang
- Credential
- MD, MED
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A201772 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1620 Alpine Blvd, Alpine, CA 91901
- Phone
- (619) 445-6200
- Enumerated
- Apr 21, 2021
- Record last updated
- Jul 17, 2026
- Medicare enrollment
- Enrolled (PECOS I20250826002396); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1620 Alpine Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Joyce Kellawon, MDInternal Medicine Physician1780795476
Verify Ruth Wang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A201772Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
92 Medicare Part D claims for 16 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.
Bills Medicare through 2 group practices
- 24 ON Physicians OF California PCBrawley, CA
- Centro DE Salud DE LA Comunidad DE San Ysidro, Inc.Alpine, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ruth Wang among 17,696 internal medicine physician records in California
Ruth Wang, MD, MED 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 fileYes · 63% of these records are
- Graduated2021 · median 2004 among the 11,065 with a school on file
- Record last updated2026 · 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).
4 internal medicine physician records list a practice address in Alpine
They are 4 of the 292 NPPES records with a practice address in Alpine, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Alpine → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joyce Kellawon, MDAlpine, CA 919011780795476
- Robert Klemens, M.D.Alpine, CA 919011912244856
- Dana Ryan, DR.Alpine, CA 919011780609990
- Isaac Davis, DOBonita, CA 919021487232419
- Clint Hoangquocgia, D.O.Bonita, CA 919021225240518
- Brett Holko, D.O.Bonita, CA 919021740398213
- Jose Leon, MDBonita, CA 919021962471292
- Rosevelle McMillin, M.D.Bonita, CA 919021750573309
Common questions
What is Ruth Wang, MD, MED's NPI number?
Ruth Wang, MD, MED's National Provider Identifier (NPI) is 1033791926, issued on Apr 21, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Ruth Wang, MD, MED located?
The NPPES record lists a practice address at 1620 Alpine Blvd, Alpine, CA, 91901. Phone: (619) 445-6200. Providers update this record themselves, so call before visiting.
How can I verify Ruth Wang, MD, MED's license?
NPPES lists California license number A201772, 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 Ruth Wang, MD, MED prescribe under Medicare Part D?
In 2024, Ruth Wang, MD, MED had 92 Medicare Part D claims for 16 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.