NPPES file of Aug 9, 2026

Amy Ellen Wong, M.D.

Maternal & Fetal Medicine Physician · Mountain View, CA

Amy Ellen Wong, M.D. is a maternal & fetal medicine physician with a practice address in Mountain View, California, and NPI 1912181553, issued on Dec 18, 2007. Check the license (California A101197, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912181553
Name
Amy Ellen Wong
Credential
M.D.
Primary taxonomy
Maternal & Fetal Medicine Physician 207VM0101X
License number
A101197 CA
Self-reported in NPPES; status is on the state search
Practice location
2485 Hospital Drive, Mountain View, CA 94040
Phone
(650) 934-7000
Enumerated
Dec 18, 2007
Record last updated
Aug 16, 2019 (not updated in 7 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest maternal & fetal medicine physician records → All 343 in California → Look up another NPI →

Also registered at 2485 Hospital Drive

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

  1. Liza Kunz, MDMaternal & Fetal Medicine Physician1073596862
  2. Per Sandberg, M.DMaternal & Fetal Medicine Physician1003830704
  3. Marianne Vivien, LCGCGenetic Counselor (M.S.)1396264115

Verify Amy Ellen Wong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A101197    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

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Amy Ellen Wong among 343 maternal & fetal medicine physician records in California

Amy Ellen Wong, M.D. is one of 343 maternal & fetal medicine physician records with a practice address in California. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 48% of them.

  • NPI issued2007 · 48% of these records are older, 37% newer
  • In a Medicare fileNo · 61% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2019 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VM0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Maternal & Fetal Medicine Physician providers in California

There are 343 maternal & fetal medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 343 in California → Every provider in Mountain View → Maternal & Fetal Medicine Physician nationwide →

The 8 maternal & fetal medicine physician records with the nearest ZIP codes

  1. Shilpa Chetty, MDMountain View, CA 940401699942029
  2. Bonnie Dwyer, M.D.Mountain View, CA 940401164564100
  3. Liza Kunz, MDMountain View, CA 940401073596862
  4. Katharine O'Malley, M.D.Mountain View, CA 940401487896239
  5. Siegfried Rotmensch, M.D.Mountain View, CA 940401932382447
  6. Per Sandberg, M.DMountain View, CA 940401003830704
  7. Amanda Yeaton-Massey, MDMountain View, CA 940401710238498
  8. Jennifer Duffy, MDBurlingame, CA 940101841631801

Common questions

What is Amy Ellen Wong, M.D.'s NPI number?

Amy Ellen Wong, M.D.'s National Provider Identifier (NPI) is 1912181553, issued on Dec 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Amy Ellen Wong, M.D. located?

The NPPES record lists a practice address at 2485 Hospital Drive, Mountain View, CA, 94040. Phone: (650) 934-7000. Providers update this record themselves, so call before visiting.

How can I verify Amy Ellen Wong, M.D.'s license?

NPPES lists California license number A101197, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.