Un Hui Har, M.D.
Obstetrics & Gynecology Physician · Mountain View, CA
Un Hui Har, M.D. is an obstetrics & gynecology physician with a practice address in Mountain View, California, and NPI 1861593253, issued on Sep 26, 2006. Check the license (California A78027, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Un Hui Har
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A78027 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2485 Hospital Dr, Mountain View, CA 94040
- Phone
- (650) 988-7470
- Enumerated
- Sep 26, 2006
- Record last updated
- Dec 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (650) 988-7472
- Medicaid ID
- 00A780270 CA
- Medicare enrollment
- Enrolled (PECOS I20041020000355); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 2485 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Un Hui Har in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A78027Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
86 Medicare Part D claims for 42 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol33 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
- Permanente Medical Group IncMountain View, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Un Hui Har among 5,088 obstetrics & gynecology physician records in California
Un Hui Har, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2000 · median 2004 among the 2,700 with a school on file
- Record last updated2021 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
49 obstetrics & gynecology physician records list a practice address in Mountain View
They are 49 of the 2,467 NPPES records with a practice address in Mountain View, and 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Mountain View → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Holly Beeman, MDMountain View, CA 940401447232210
- Richard Hill, MDMountain View, CA 940401568579878
- Catherine HillMountain View, CA 940401326155656
- Jenny-Jean Hua, MDMountain View, CA 940401740397074
- Takeshi Inouye, MDMountain View, CA 940401386751626
- Nina Jaki, MDMountain View, CA 940401982711222
- Yin Lim, MDMountain View, CA 940401306854526
- Ken Liu, M.D.,Mountain View, CA 940401437242278
Common questions
What is Un Hui Har, M.D.'s NPI number?
Un Hui Har, M.D.'s National Provider Identifier (NPI) is 1861593253, issued on Sep 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Un Hui Har, M.D. located?
The NPPES record lists a practice address at 2485 Hospital Dr, Mountain View, CA, 94040. Phone: (650) 988-7470. Providers update this record themselves, so call before visiting.
How can I verify Un Hui Har, M.D.'s license?
NPPES lists California license number A78027, 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 Un Hui Har, M.D. prescribe under Medicare Part D?
In 2024, Un Hui Har, M.D. had 86 Medicare Part D claims for 42 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.