NPPES file of Aug 9, 2026

Karan K. Patel, M.D.

Adult Medicine Physician · San Leandro, CA

Karan K. Patel, M.D. is an adult medicine physician with a practice address in San Leandro, California, and NPI 1538511399, issued on Jul 5, 2016. Check the license (California A161479, 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
1538511399
Name
Karan K. Patel
Credential
M.D.
Primary taxonomy
Adult Medicine Physician 207QA0505X
License number
A161479 CA
Self-reported in NPPES; status is on the state search
Practice location
2500 Merced St, San Leandro, CA 94577
Phone
(510) 454-4010
Enumerated
Jul 5, 2016
Record last updated
Dec 17, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210122002708); 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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Also registered at 2500 Merced St

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

  1. Rabiatu Abdullah, M.D.Emergency Medicine Physician1497833248
  2. Scott Abramson, M.D.Neurology Physician1891873667
  3. Jayaprada Achanta, M.D.Anesthesiology Physician1053463851
  4. Kristi Adachi, PHARMDPharmacist1396456737
  5. Mary Grace Aguayo, CRTCertified Respiratory Therapist1467923730
  6. Jatinder AhluwaliaPharmacist1508391483

Verify Karan K. Patel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A161479
    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.

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83% more Medicare Part D claims than the average adult medicine physician in 2024

5,499 Medicare Part D claims for 882 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 180 claims were for opioids.

  1. Karan Patel5,499
  2. Specialty average3,002

Most prescribed

  1. Atorvastatin Calcium459 claims
  2. Amlodipine Besylate323 claims
  3. Lisinopril166 claims
  4. Tamsulosin Hcl161 claims
  5. Losartan Potassium156 claims
  6. Metoprolol Tartrate147 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: $27.11

1 payment: food and beverage; the largest payer was Dexcom, Inc. The 664 providers of this specialty with any payment received $1,405.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Karan Patel$27.11
  2. Specialty average$1,405.95

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

Bills Medicare through one group practice

  1. Permanente Medical Group IncSan Leandro, CA

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

Karan K. Patel among 386 adult medicine physician records in California

Karan K. Patel, 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 2016, is newer than 73% of them.

  • NPI issued2016 · 73% of these records are older, 25% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 48% of these records are
  • Graduated2016 · 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. Khurram Barolia, M.D.San Leandro, CA 945771760612816
  2. Somia Mohanty, MDSan Leandro, CA 945771053974907
  3. Keri Montgomery, NPSt Helena, CA 945741881925154
  4. Himabindu Chinnepalli, MDDublin, CA 945681134858426
  5. Marie Agleham, MDUnion City, CA 945871649298209
  6. Bryan Anker, MDUnion City, CA 945871265926422
  7. Isabel Tejeda, M.D.Union City, CA 945871326181165
  8. Barbara Julier, MDPleasanton, CA 945661083629455

Common questions

What is Karan K. Patel, M.D.'s NPI number?

Karan K. Patel, M.D.'s National Provider Identifier (NPI) is 1538511399, issued on Jul 5, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Karan K. Patel, M.D. located?

The NPPES record lists a practice address at 2500 Merced St, San Leandro, CA, 94577. Phone: (510) 454-4010. Providers update this record themselves, so call before visiting.

How can I verify Karan K. Patel, M.D.'s license?

NPPES lists California license number A161479, 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 Karan K. Patel, M.D. prescribe under Medicare Part D?

In 2024, Karan K. Patel, M.D. had 5,499 Medicare Part D claims for 882 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.