Diane Tam Singer, M.D.
Anatomic Pathology & Clinical Pathology Physician · Torrance, CA
Diane Tam Singer, M.D. is an anatomic pathology & clinical pathology physician with a practice address in Torrance, California, and NPI 1972539047, issued on Jun 23, 2006. Check the license (California G86805, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Diane Tam Singer
- Credential
- M.D.
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- G86805 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4101 Torrance Blvd., Torrance, CA 90503
- Phone
- (310) 543-6970
- Enumerated
- Jun 23, 2006
- Record last updated
- Jan 27, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (310) 698-7054
- Medicaid ID
- 00G868050 CA
- Medicare enrollment
- Enrolled (PECOS I20040303000884); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 4101 Torrance Blvd.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rudo Benjamin, MDInternal Medicine Physician1295736676
Verify Diane Tam Singer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G86805Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Affiliated Pathologists Medical Group, Inc.Torrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in California
There are 1,554 anatomic pathology & clinical pathology physician records in California.
Other anatomic pathology & clinical pathology physician records in California
- Sophie Aalaei, M.D.San Diego, CA1558454207
- Abdul Majeed Abid, MBBS, MDClovis, CA1578055414
- Ronnie Abraham, MDSan Luis Obispo, CA1124254933
- Joline Abrahams, M.D.Palm Springs, CA1679567366
- Guillermo Acero, MDOjai, CA1629144373
- Dennis Adams, M.D.Stanford, CA1053726182
- Alaa Afify, M.D.Sacramento, CA1245212950
- Ali Afsari, M.D.Orange, CA1275064362
- Mukesh AgarwalColton, CA1154901056
- Maryam Aghighi, MDSanta Rosa, CA1073074977
Common questions
What is Diane Tam Singer, M.D.'s NPI number?
Diane Tam Singer, M.D.'s National Provider Identifier (NPI) is 1972539047, issued on Jun 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Diane Tam Singer, M.D. located?
The NPPES record lists a practice address at 4101 Torrance Blvd., Torrance, CA, 90503. Phone: (310) 543-6970. Providers update this record themselves, so call before visiting.
How can I verify Diane Tam Singer, M.D.'s license?
NPPES lists California license number G86805, 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.
What is Diane Tam Singer, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. 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.