Mandakini Hersh Patel, M.D.
Internal Medicine Physician · Walnut Creek, CA
Mandakini Hersh Patel, M.D. is an internal medicine physician with a practice address in Walnut Creek, California, and NPI 1457739161, issued on May 13, 2015. Check the license (California A158658, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mandakini Hersh Patel
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A158658 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1220 Rossmoor Pkwy, Walnut Creek, CA 94595
- Phone
- (925) 947-3393
- Enumerated
- May 13, 2015
- Record last updated
- Oct 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20191028000801); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1220 Rossmoor Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mandakini Hersh Patel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A158658Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average internal medicine physician in 2024
732 Medicare Part D claims for 119 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 32 claims were for opioids.
Most prescribed
- Furosemide36 claims
- Atorvastatin Calcium32 claims
- Amlodipine Besylate25 claims
- Lisinopril22 claims
- Gabapentin21 claims
- Jardiance21 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 85.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 5 group practices
- Axis Community Health IncPleasanton, CA
- John Muir Physician NetworkConcord, CA
- Quantum Healthcare Medical Associates IncSan Ramon, CA
- Solomon Medical IncMountain View, CA
- Solomon Physicians Group PCSalinas, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mandakini Hersh Patel among 17,696 internal medicine physician records in California
Mandakini Hersh Patel, M.D. 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 2015, is newer than 76% of them.
- NPI issued2015 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2010 · median 2004 among the 11,065 with a school on file
- Record last updated2019 · 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).
183 internal medicine physician records list a practice address in Walnut Creek
They are 183 of the 6,170 NPPES records with a practice address in Walnut Creek, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Walnut Creek → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Viviane Alfandary, M.D.Walnut Creek, CA 945951053338095
- Sukhjinder Brah, M.D.Walnut Creek, CA 945951023044559
- Lonnie Bristow, M.D.Walnut Creek, CA 945951871510529
- Smita Chandra, M.D.Walnut Creek, CA 945951811917826
- Han Kyo Chang, M.DWalnut Creek, CA 945951235127150
- Russell Everest, M.D.Walnut Creek, CA 945951528085404
- Kamal Ghei, M.D.Walnut Creek, CA 945951366490120
- Lavinia Herbei, M.D.Walnut Creek, CA 945951508834946
Common questions
What is Mandakini Hersh Patel, M.D.'s NPI number?
Mandakini Hersh Patel, M.D.'s National Provider Identifier (NPI) is 1457739161, issued on May 13, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Mandakini Hersh Patel, M.D. located?
The NPPES record lists a practice address at 1220 Rossmoor Pkwy, Walnut Creek, CA, 94595. Phone: (925) 947-3393. Providers update this record themselves, so call before visiting.
How can I verify Mandakini Hersh Patel, M.D.'s license?
NPPES lists California license number A158658, 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 Mandakini Hersh Patel, M.D. prescribe under Medicare Part D?
In 2024, Mandakini Hersh Patel, M.D. had 732 Medicare Part D claims for 119 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Mandakini Hersh Patel, M.D.'s MIPS final score?
The 2023 MIPS final score is 85.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.