Andres Zimmermann, MD
Geriatric Medicine (Internal Medicine) Physician · Oceanside, CA
Andres Zimmermann, MD is a geriatric medicine (internal medicine) physician with a practice address in Oceanside, California, and NPI 1114904422, issued on Dec 28, 2005. Check the license (California A71687, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Andres Zimmermann
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- A71687 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3601 Vista Way, Oceanside, CA 92056
- Phone
- (760) 639-1714
- Enumerated
- Dec 28, 2005
- Record last updated
- Mar 7, 2023
- Fax
- (760) 630-1252
- Medicare enrollment
- Enrolled (PECOS I20070129000671); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 532 in California → Look up another NPI →
Also registered at 3601 Vista Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Andres Zimmermann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A71687Check 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% more Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
7,818 Medicare Part D claims for 583 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 205 claims were for opioids.
Most prescribed
- Atorvastatin Calcium495 claims
- Amlodipine Besylate400 claims
- Losartan Potassium369 claims
- Levothyroxine Sodium338 claims
- Rosuvastatin Calcium267 claims
- Lisinopril242 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.
The MIPS final score for 2023 (Medicare payment program): 80.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $188.80
4 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 1,004 providers of this specialty with any payment received $1,720.82 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Andres Zimmermann among 532 geriatric medicine (internal medicine) physician records in California
Andres Zimmermann, MD is one of 532 geriatric medicine (internal medicine) physician records with a practice address in California. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated1995 · median 1999 among the 271 with a school on file
- Record last updated2023 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in California
There are 532 geriatric medicine (internal medicine) physician records in California.
All 532 in California → Every provider in Oceanside → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Eric Barco, MDOceanside, CA 920561619940095
- Ilsong Chong, M.D.Oceanside, CA 920541831240159
- Mohinderpal Thaper, MDPoway, CA 920641295795037
- Frances Philley, MDSantee, CA 920711285713586
- Brian Clifford, M.D.La Jolla, CA 920371326450263
- Sara Davies, MDLa Jolla, CA 920371275229361
- Katrina Deleon, MDLa Jolla, CA 920371013250778
- Daniel Given, M.D.La Jolla, CA 920371144530205
Common questions
What is Andres Zimmermann, MD's NPI number?
Andres Zimmermann, MD's National Provider Identifier (NPI) is 1114904422, issued on Dec 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Andres Zimmermann, MD located?
The NPPES record lists a practice address at 3601 Vista Way, Oceanside, CA, 92056. Phone: (760) 639-1714. Providers update this record themselves, so call before visiting.
How can I verify Andres Zimmermann, MD's license?
NPPES lists California license number A71687, 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 Andres Zimmermann, MD prescribe under Medicare Part D?
In 2024, Andres Zimmermann, MD had 7,818 Medicare Part D claims for 583 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. Part D covers Medicare prescriptions only.
What is Andres Zimmermann, MD's MIPS final score?
The 2023 MIPS final score is 80.2 of 100. 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.