NPPES file of Aug 9, 2026

Manbir Singh, MD FACP

Internal Medicine Physician · Bakersfield, CA

Manbir Singh, MD FACP is an internal medicine physician with a practice address in Bakersfield, California, and NPI 1225131675, issued on Sep 7, 2006. Check the license (California A44591, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1225131675
Name
Manbir Singh
Credential
MD FACP
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A44591 CA
Self-reported in NPPES; status is on the state search
Practice location
3905 Hughes LN Ste E-1, Bakersfield, CA 93304
Phone
(661) 827-1033
Enumerated
Sep 7, 2006
Record last updated
Oct 3, 2024
Fax
(661) 827-1138
Medicaid ID
00A445912 CA
Medicare enrollment
Enrolled (PECOS I20100923001354); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Manbir Singh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A44591
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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2.2 times the Medicare Part D claims of the average internal medicine physician in 2024

7,088 Medicare Part D claims for 263 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Manbir Singh7,088
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium462 claims
  2. Omeprazole317 claims
  3. Metformin Hcl313 claims
  4. Amlodipine Besylate284 claims
  5. Gabapentin242 claims
  6. Losartan Potassium214 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: $141.42

2 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Manbir Singh$141.42
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Manbir Singh among 17,696 internal medicine physician records in California

Manbir Singh, MD FACP 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 fileYes · 63% of these records are
  • Graduated1979 · median 2004 among the 11,065 with a school on file
  • Record last updated2024 · 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).

214 internal medicine physician records list a practice address in Bakersfield

They are 214 of the 11,539 NPPES records with a practice address in Bakersfield, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Arash Khosrovi-Eghbal, M.D.Bakersfield, CA 933041164873840
  2. Aniko Matis, MDBakersfield, CA 933041639244098
  3. Ma Simonette Soler-Rivera, M.D.Bakersfield, CA 933041073793287
  4. Fehma Tufail, MDBakersfield, CA 933041659446011
  5. Claudia Alvarado, M.D.Bakersfield, CA 933051083859045
  6. Alka Ohri, M.DBakersfield, CA 933051508098617
  7. Irene Spinello, M.D.Bakersfield, CA 933051871554162
  8. Stephan Sway, M.D.Bakersfield, CA 933051801928346

Common questions

What is Manbir Singh, MD FACP's NPI number?

Manbir Singh, MD FACP's National Provider Identifier (NPI) is 1225131675, issued on Sep 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Manbir Singh, MD FACP located?

The NPPES record lists a practice address at 3905 Hughes LN Ste E-1, Bakersfield, CA, 93304. Phone: (661) 827-1033. Providers update this record themselves, so call before visiting.

How can I verify Manbir Singh, MD FACP's license?

NPPES lists California license number A44591, 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 Manbir Singh, MD FACP prescribe under Medicare Part D?

In 2024, Manbir Singh, MD FACP had 7,088 Medicare Part D claims for 263 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.