Nalini Singh, M.D.
Endocrinology, Diabetes & Metabolism Physician · San Dimas, CA
Nalini Singh, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in San Dimas, California, and NPI 1619070539, issued on Sep 6, 2006. Check the license (California A61430, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nalini Singh
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- A61430 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1334 W Covina Blvd Ste 202, San Dimas, CA 91773
- Phone
- (909) 592-2023
- Enumerated
- Sep 6, 2006
- Record last updated
- Sep 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20070316000491); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1995
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Verify Nalini Singh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A61430Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
2,027 Medicare Part D claims for 249 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims.
Most prescribed
- Levothyroxine Sodium196 claims
- Mounjaro125 claims
- Trulicity83 claims
- Metformin Hcl81 claims
- Nano 2nd Gen Pen Needle75 claims
- Ozempic72 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: $84.94
4 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 5,661 providers of this specialty with any payment received $5,742.15 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.
Nalini Singh among 1,131 endocrinology, diabetes & metabolism physician records in California
Nalini Singh, M.D. is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% 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, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1995 · median 2003 among the 779 with a school on file
- Record last updated2021 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in San Dimas → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Rambod Amani-Yazdi M.d, MDSan Dimas, CA 917731811978364
- Marc Gutin, MDSan Dimas, CA 917731861423709
- Bashar Saad, MDSan Dimas, CA 917731275611360
- Gamini Hethumuni, MDSan Gabriel, CA 917761659459824
- Chau Le, MDRosemead, CA 917701235135633
- Michael Lin, MDSan Gabriel, CA 917761285661819
- Tik Tjoa, MDPonoma, CA 917691811943186
- Seerat Anand, M.D.Pomona, CA 917671417575085
Common questions
What is Nalini Singh, M.D.'s NPI number?
Nalini Singh, M.D.'s National Provider Identifier (NPI) is 1619070539, issued on Sep 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nalini Singh, M.D. located?
The NPPES record lists a practice address at 1334 W Covina Blvd Ste 202, San Dimas, CA, 91773. Phone: (909) 592-2023. Providers update this record themselves, so call before visiting.
How can I verify Nalini Singh, M.D.'s license?
NPPES lists California license number A61430, 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 Nalini Singh, M.D. prescribe under Medicare Part D?
In 2024, Nalini Singh, M.D. had 2,027 Medicare Part D claims for 249 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.