NPPES file of Aug 9, 2026

Amy Teng, D.O.

Obstetrics & Gynecology Physician · Mountain View, CA

Amy Teng, D.O. is an obstetrics & gynecology physician with a practice address in Mountain View, California, and NPI 1619279205, issued on Dec 2, 2010. Check the license (California 20A12105, 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
1619279205
Name
Amy Teng
Credential
D.O.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
20A12105 CA
Self-reported in NPPES; status is on the state search
Practice location
2500 Hospital Dr, Mountain View, CA 94040
Phone
(650) 396-8110
Enumerated
Dec 2, 2010
Record last updated
Apr 6, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(650) 336-7359
Medicare enrollment
Enrolled (PECOS I20150909002659); accepts Medicare assignment
Medical or professional school
Midwestern University, Chicago College Of Osteopathic Med, 2004
Telehealth
Offers telehealth (CMS)
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 Hospital Dr

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

  1. Robert Bronstone, M.D.Gastroenterology Physician1568519254
  2. Dean Cummings, MDInternal Medicine Physician1265454029
  3. Patricia Einarson, MD, MBAFamily Medicine Physician1750375796
  4. Lawrence Epstein, MDInternal Medicine Physician1093817728
  5. Ahuva Faraji, M.A, MFTMarriage & Family Therapist1255762290
  6. Thomas Farris, DDSGeneral Practice Dentistry1457443442

Verify Amy Teng in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A12105
    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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48% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

85 Medicare Part D claims for 26 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.

  1. Amy Teng85
  2. Specialty average165

Most prescribed

  1. Estradiol17 claims
  2. Progesterone11 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: $466.28

20 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Amy Teng$466.28
  2. Specialty average$1,030.61

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. Doctor Azad Medical CorporationMountain View, CA

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

Amy Teng among 5,088 obstetrics & gynecology physician records in California

Amy Teng, D.O. 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 2010, is newer than 70% of them.

  • NPI issued2010 · 70% of these records are older, 28% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2004 · median 2004 among the 2,700 with a school on file
  • Record last updated2015 · 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.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Holly Beeman, MDMountain View, CA 940401447232210
  2. Un Hui Har, M.D.Mountain View, CA 940401861593253
  3. Richard Hill, MDMountain View, CA 940401568579878
  4. Catherine HillMountain View, CA 940401326155656
  5. Jenny-Jean Hua, MDMountain View, CA 940401740397074
  6. Takeshi Inouye, MDMountain View, CA 940401386751626
  7. Nina Jaki, MDMountain View, CA 940401982711222
  8. Yin Lim, MDMountain View, CA 940401306854526

Common questions

What is Amy Teng, D.O.'s NPI number?

Amy Teng, D.O.'s National Provider Identifier (NPI) is 1619279205, issued on Dec 2, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Amy Teng, D.O. located?

The NPPES record lists a practice address at 2500 Hospital Dr, Mountain View, CA, 94040. Phone: (650) 396-8110. Providers update this record themselves, so call before visiting.

How can I verify Amy Teng, D.O.'s license?

NPPES lists California license number 20A12105, 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 Amy Teng, D.O. prescribe under Medicare Part D?

In 2024, Amy Teng, D.O. had 85 Medicare Part D claims for 26 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.