David R. Singer, MD
Internal Medicine Physician · Long Beach, CA
David R. Singer, MD is an internal medicine physician with a practice address in Long Beach, California, and NPI 1750303194, issued on Jul 24, 2006. Check the license (California G31304, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David R. Singer
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G31304 CA
Self-reported in NPPES; status is on the state search - Practice location
- 411 E 10TH St, Long Beach, CA 90813
- Phone
- (562) 435-5353
- Enumerated
- Jul 24, 2006
- Record last updated
- Sep 11, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 411 E 10TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brian Olsen, A.S.W.Clinical Social Worker1831430339
Verify David R. Singer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G31304Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
47 Medicare Part D claims for 18 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.
David R. Singer among 17,696 internal medicine physician records in California
David R. Singer, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2007 · 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).
221 internal medicine physician records list a practice address in Long Beach
They are 221 of the 13,650 NPPES records with a practice address in Long Beach, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Long Beach → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Katya Corado, M.D.Long Beach, CA 908131013109461
- Jasminka CrileyLong Beach, CA 908131174535017
- Peter Ferrera, M.D.Long Beach, CA 908131366481384
- Brian Hugh, D.O.Long Beach, CA 908131811013857
- John Kassabian, M.D.Long Beach, CA 908131932207768
- Tom Ky, M.D.Long Beach, CA 908131558397869
- Thomas McCloy, MDLong Beach, CA 908131568476513
- Minh Nguyen, MDLong Beach, CA 908131922160613
Common questions
What is David R. Singer, MD's NPI number?
David R. Singer, MD's National Provider Identifier (NPI) is 1750303194, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David R. Singer, MD located?
The NPPES record lists a practice address at 411 E 10TH St, Long Beach, CA, 90813. Phone: (562) 435-5353. Providers update this record themselves, so call before visiting.
How can I verify David R. Singer, MD's license?
NPPES lists California license number G31304, 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 R. Singer, MD prescribe under Medicare Part D?
In 2024, David R. Singer, MD had 47 Medicare Part D claims for 18 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.