David Timmer, MD
Hospitalist Physician · San Diego, CA
David Timmer, MD is a hospitalist physician with a practice address in San Diego, California, and NPI 1952987661, issued on Mar 23, 2021. Check the license (California A191660, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Timmer
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- A191660 CA
1952987661 CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 W. Arbor Dr., San Diego, CA 92103
- Phone
- (619) 543-6268
- Enumerated
- Mar 23, 2021
- Record last updated
- Feb 12, 2025
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 200 W. Arbor Dr.
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify David Timmer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A191660Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% fewer Medicare Part D claims than the average hospitalist physician in 2024
493 Medicare Part D claims for 58 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Atorvastatin Calcium41 claims
- Losartan Potassium27 claims
- Jardiance23 claims
- Fluticasone Propionate19 claims
- Tamsulosin Hcl17 claims
- Rosuvastatin Calcium16 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.
Industry payments in 2024: $83.19
2 payments; by number, the most common kind was food and beverage; the largest payer was Kestra Medical Technology Services, Inc. The 7,324 providers of this specialty with any payment received $494.84 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.
David Timmer among 3,099 hospitalist physician records in California
David Timmer, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% 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 90% of them.
- NPI issued2021 · 90% of these records are older, 6% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileNo · 81% of these records are
- Record last updated2025 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in San Diego → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Ali Amirrezvani, M.D.San Diego, CA 921031861485005
- William Anapoell, MDSan Diego, CA 921031982631289
- Deepak Asudani, M.D.San Diego, CA 921031548208812
- Atousa Brandish, M.D.San Diego, CA 921031609814235
- Michael Hogarth, M.D.San Diego, CA 921031225019193
- Matthew Hom, M.D.San Diego, CA 921031881632081
- Bryan Huang, M.D.San Diego, CA 921031881652394
- Ian Jenkins, M.D.San Diego, CA 921031992762520
Common questions
What is David Timmer, MD's NPI number?
David Timmer, MD's National Provider Identifier (NPI) is 1952987661, issued on Mar 23, 2021. An NPI identifies a provider in billing; it is not a license.
Where is David Timmer, MD located?
The NPPES record lists a practice address at 200 W. Arbor Dr., San Diego, CA, 92103. Phone: (619) 543-6268. Providers update this record themselves, so call before visiting.
How can I verify David Timmer, MD's license?
NPPES lists California license number A191660, 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 David Timmer, MD prescribe under Medicare Part D?
In 2024, David Timmer, MD had 493 Medicare Part D claims for 58 beneficiaries; the average among hospitalist physician prescribers was 521. 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.