Margaret Mumbi Mongare, MD
Internal Medicine Physician · Palo Alto, CA
Margaret Mumbi Mongare, MD is an internal medicine physician with a practice address in Palo Alto, California, and NPI 1427555408, issued on Apr 6, 2018. Check the license (California A167176, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Margaret Mumbi Mongare
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A167176 CA
Self-reported in NPPES; status is on the state search - Practice location
- 795 EL Camino Real, Palo Alto, CA 94301
- Phone
- (650) 942-8309
- Enumerated
- Apr 6, 2018
- Record last updated
- Sep 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20211005002519); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 795 EL Camino Real
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Verify Margaret Mumbi Mongare in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A167176Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,427 Medicare Part D claims for 259 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium231 claims
- Amlodipine Besylate196 claims
- Losartan Potassium111 claims
- Levothyroxine Sodium85 claims
- Tamsulosin Hcl81 claims
- Famotidine70 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
- Sutter Bay Medical FoundationLos Altos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Mumbi Mongare among 17,696 internal medicine physician records in California
Margaret Mumbi Mongare, MD 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 2018, is newer than 84% of them.
- NPI issued2018 · 84% of these records are older, 14% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2018 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 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).
187 internal medicine physician records list a practice address in Palo Alto
They are 187 of the 7,617 NPPES records with a practice address in Palo Alto, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Palo Alto → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Bradford Duncan, MDPalo Alto, CA 943011104932540
- Barry Eisenberg, MDPalo Alto, CA 943011134235450
- Susan Elgee, MDPalo Alto, CA 943011225144561
- Luis Folan, MDPalo Alto, CA 943011255314126
- Lisa Gervin, M.D.Palo Alto, CA 943011962425157
Common questions
What is Margaret Mumbi Mongare, MD's NPI number?
Margaret Mumbi Mongare, MD's National Provider Identifier (NPI) is 1427555408, issued on Apr 6, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Mumbi Mongare, MD located?
The NPPES record lists a practice address at 795 EL Camino Real, Palo Alto, CA, 94301. Phone: (650) 942-8309. Providers update this record themselves, so call before visiting.
How can I verify Margaret Mumbi Mongare, MD's license?
NPPES lists California license number A167176, 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 Margaret Mumbi Mongare, MD prescribe under Medicare Part D?
In 2024, Margaret Mumbi Mongare, MD had 2,427 Medicare Part D claims for 259 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.