Renu Kumar, MD
Hospitalist Physician · Hayward, CA
Renu Kumar, MD is a hospitalist physician with a practice address in Hayward, California, and NPI 1780762542, issued on Nov 1, 2006. Check the license (California A40937, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Renu Kumar
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A40937 CA
Self-reported in NPPES; status is on the state search - Practice location
- 27400 Hesperian Blvd, Hayward, CA 94545
- Phone
- (510) 784-4000
- Enumerated
- Nov 1, 2006
- Record last updated
- Nov 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A409370 CA
- Medicare enrollment
- Enrolled (PECOS I20110408000263); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 27400 Hesperian Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Renu Kumar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A40937Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Permanente Medical Group IncOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Renu Kumar among 3,099 hospitalist physician records in California
Renu Kumar, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 73% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated1980 · median 2010 among the 2,505 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Hayward → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Joel Angel, M.D.Hayward, CA 945451669644571
- Ramiro Garcia, M.D.Hayward, CA 945451255478772
- Nirmala Kannan, M.D.Hayward, CA 945451114014172
- Rishi Kapila, M.D.Hayward, CA 945451811197973
- Rajesh Rampal, MDHayward, CA 945451518045368
- Amanuel Teklu, MDHayward, CA 945451760560528
- Arash Foroutani, M.D.Castro Valley, CA 945461346267309
- Fatma Khakoo, MDCastro Valley, CA 945461326045196
Common questions
What is Renu Kumar, MD's NPI number?
Renu Kumar, MD's National Provider Identifier (NPI) is 1780762542, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Renu Kumar, MD located?
The NPPES record lists a practice address at 27400 Hesperian Blvd, Hayward, CA, 94545. Phone: (510) 784-4000. Providers update this record themselves, so call before visiting.
How can I verify Renu Kumar, MD's license?
NPPES lists California license number A40937, 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.
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.