NPPES file of Aug 9, 2026

Ritu Singhal, M.D.

Adult Medicine Physician · Walnut Creek, CA

Ritu Singhal, M.D. is an adult medicine physician with a practice address in Walnut Creek, California, and NPI 1578521928, issued on May 3, 2006. Check the license (California A106935, 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
1578521928
Name
Ritu Singhal
Credential
M.D.
Primary taxonomy
Adult Medicine Physician 207QA0505X
License number
A106935 CA
Self-reported in NPPES; status is on the state search
Practice location
320 Lennon LN, Walnut Creek, CA 94598
Phone
(925) 906-2442
Enumerated
May 3, 2006
Record last updated
Dec 14, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
0093874 NJ
Medicare enrollment
Enrolled (PECOS I20090702000640); 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.
Download card Updates feed

Also registered at 320 Lennon LN

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Joel Acab, MDInternal Medicine Physician1518405661
  2. Vitas Alekna, MDOphthalmology Physician1770661860
  3. Mary Andre, P.T.Physical Therapist1740344779
  4. Lynn Arsenault, MDPediatrics Physician1972681054
  5. Ashley Batchelder, DPTPhysical Therapist1851450936
  6. Cynthia Bellitt, R.N.N.P.Women's Health Nurse Practitioner1851464630

Verify Ritu Singhal in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A106935
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

2.4 times the Medicare Part D claims of the average adult medicine physician in 2024

7,336 Medicare Part D claims for 720 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 201 claims were for opioids.

  1. Ritu Singhal7,336
  2. Specialty average3,002

Most prescribed

  1. Atorvastatin Calcium468 claims
  2. Amlodipine Besylate378 claims
  3. Losartan Potassium362 claims
  4. Levothyroxine Sodium360 claims
  5. Lisinopril339 claims
  6. Atenolol249 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

  1. Permanente Medical Group IncRichmond, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ritu Singhal among 386 adult medicine physician records in California

Ritu Singhal, M.D. is one of 386 adult medicine physician records with a practice address in California. 69% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 65% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 48% of these records are
  • Graduated1997 · median 2005 among the 187 with a school on file
  • Record last updated2021 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Medicine Physician providers in California

There are 386 adult medicine physician records in California.

The 8 adult medicine physician records with the nearest ZIP codes

  1. Mary Boegel, M.D.Walnut Creek, CA 945981437277282
  2. Doertlis Schultze-Allen, M.D.Walnut Creek, CA 945981386956969
  3. Vanessa Litman, MDOakland, CA 946011124100110
  4. Chanatip Suksang, M.D.Walnut Creek, CA 945951497977102
  5. Grace Lat, M.D.Oakland, CA 946051528196326
  6. Paige Yoshisato, M.D.Vallejo, CA 945911770586802
  7. Laurena Dongmo FotsingVallejo, CA 945901003433699
  8. Peter Navolanic, M.D.Vallejo, CA 945901427121896

Common questions

What is Ritu Singhal, M.D.'s NPI number?

Ritu Singhal, M.D.'s National Provider Identifier (NPI) is 1578521928, issued on May 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ritu Singhal, M.D. located?

The NPPES record lists a practice address at 320 Lennon LN, Walnut Creek, CA, 94598. Phone: (925) 906-2442. Providers update this record themselves, so call before visiting.

How can I verify Ritu Singhal, M.D.'s license?

NPPES lists California license number A106935, 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 Ritu Singhal, M.D. prescribe under Medicare Part D?

In 2024, Ritu Singhal, M.D. had 7,336 Medicare Part D claims for 720 beneficiaries; the average among adult medicine physician prescribers was 3,002. 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.