Harbhajan Singh, M.D.
Pulmonary Disease Physician · Manteca, CA
Harbhajan Singh, M.D. is a pulmonary disease physician with a practice address in Manteca, California, and NPI 1225025760, issued on Sep 30, 2005. Check the license (California C54599, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Harbhajan Singh
- Credential
- M.D.
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- C54599 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1140 Norman Dr. #4, Manteca, CA 95336
- Phone
- (209) 824-3158
- Enumerated
- Sep 30, 2005
- Record last updated
- Jan 27, 2022
- Fax
- (209) 239-1725
- Medicare enrollment
- Enrolled (PECOS I20160413001036); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 1,443 in California → Look up another NPI →
Verify Harbhajan Singh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C54599Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
217 Medicare Part D claims for 42 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 11 claims were for opioids.
Most prescribed
- Atorvastatin Calcium21 claims
- Potassium Chloride16 claims
- Gabapentin13 claims
- Lantus12 claims
- Lisinopril12 claims
- Metformin Hcl12 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.
Bills Medicare through one group practice
- Community Health Centers OF AmericaMariposa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Harbhajan Singh among 1,443 pulmonary disease physician records in California
Harbhajan Singh, M.D. is one of 1,443 pulmonary disease 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1982 · median 2002 among the 1,061 with a school on file
- Record last updated2022 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in California
There are 1,443 pulmonary disease physician records in California.
All 1,443 in California → Every provider in Manteca → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Siraj Ahmed, M.D.Manteca, CA 953361265513121
- Michael Davis, M.D.Manteca, CA 953361225031693
- Eman Albaddawi, M.DManteca, CA 953371730490053
- Lisa Gitthens Moses, RRTManteca, CA 953371114498789
- Pramma ElayaperumalMerced, CA 953401417449919
- Rama Nandipati, M.DMerced, CA 953401962583096
- Rajapuram Kumar, MDMerced, CA 953481043393986
- Mohammed Abo Khamis, M.D.Modesto, CA 953501508098419
Common questions
What is Harbhajan Singh, M.D.'s NPI number?
Harbhajan Singh, M.D.'s National Provider Identifier (NPI) is 1225025760, issued on Sep 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Harbhajan Singh, M.D. located?
The NPPES record lists a practice address at 1140 Norman Dr. #4, Manteca, CA, 95336. Phone: (209) 824-3158. Providers update this record themselves, so call before visiting.
How can I verify Harbhajan Singh, M.D.'s license?
NPPES lists California license number C54599, 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 Harbhajan Singh, M.D. prescribe under Medicare Part D?
In 2024, Harbhajan Singh, M.D. had 217 Medicare Part D claims for 42 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.