Dr. Ann Wong, MD

  • Los Gatos, CA
  • OB-GYN
NPI1093815607
Medicare services, 2022
14
Part D claims, 2024
15
Publications
21
Industry payments
$254
Affiliated sites
1
Practice address
877 W Fremont Ave Ste N Suite N, Sunnyvale, CA 94087
Practice phone
Call (408) 730-4240
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Palo Alto Medial Foundation - OB/GYN & Women's Health - Sunnyvale (W Fremont Ave)

Women's health practice · Sunnyvale, California

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Dr. Ann Wong is an OB-GYN in Los Gatos, California

Dr. Wong practices at Palo Alto Medial Foundation - OB/GYN & Women's Health - Sunnyvale (W Fremont Ave) in Sunnyvale, California.

Dr. Wong's NPI, 1093815607, was assigned on September 24, 2006. Dr. Wong graduated from George Washington University School of Medicine and Health Sciences in 1997. Dr. Wong's California license number on file is A60127.

NPI and contact details
NPI enumeration date
September 24, 2006
NPI status
Active
Practice phone
(408) 730-4240
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
55
Medical school graduation
1997

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Ann Wong practices in Sunnyvale and Los Gatos

Dr. Wong's primary practice is Palo Alto Medial Foundation - OB/GYN & Women's Health - Sunnyvale (W Fremont Ave), at 877 W Fremont Ave Ste N Suite N, Sunnyvale, CA 94087. The practice phone is (408) 730-4240. The NPI Registry lists Dr. Wong's practice address as 815 Pollard Rd, Los Gatos, CA 95032.

  • Palo Alto Medial Foundation - OB/GYN & Women's Health - Sunnyvale (W Fremont Ave)Primary
    877 W Fremont Ave Ste N Suite N, Sunnyvale, CA 94087Phone(408) 730-4240
  • NPI Registry address
    815 Pollard Rd, Los Gatos, CA 95032 · Santa Clara CountyPhone(408) 730-4240

Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data

Dr. Ann Wong is affiliated with 1 site of care and 1 medical group

Dr. Wong's primary practice is Palo Alto Medial Foundation - OB/GYN & Women's Health - Sunnyvale (W Fremont Ave) in Sunnyvale, California. The medical group on file is Palo Alto Foundation Medical Group.

Palo Alto Medial Foundation - OB/GYN & Women's Health - Sunnyvale (W Fremont Ave)Women's health practice · Sunnyvale, CaliforniaPrimary
Palo Alto Foundation Medical GroupPrimary care group, Palo Alto, CA

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dmand AI tracks the EHR system at Dr. Ann Wong's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wong practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Palo Alto Medial Foundation - OB/GYN & Women's Health - Sunnyvale (W Fremont Ave)Available with a free account

Source: Dmand AI Technology Install Data

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Dr. Ann Wong is one of 4,642 OB-GYNs in California

Obstetrics and gynecology is Dr. Wong's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Wong is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Dr. Wong has a license on file in California.

Specialties and state licenses

  • Obstetrics and gynecology, CaliforniaPrimaryLicense A60127 · 1996 to 2025 · taxonomy 207V00000X

Clinical focus

Dmand AI lists menopause among the conditions Dr. Wong treats.

OB-GYNs near Dr. Wong

Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Ann Wong billed Medicare for 14 services in 2022

CMS data shows 14 Medicare services from Dr. Wong across 1 procedure code in 2022, all of them office visits. Medicare paid $1,112 for them. Every service was in an office.

Medicare services, 202214
Paid by Medicare$1,112
Procedure codes1

Dr. Wong's Medicare services by type, 2020 to 2022

  • 2020
  • 2022
Office and hospital visits
2020: 132022: 148%

Dr. Wong compared with the California median for OB-GYNs, 2022

  • Dr. Wong
  • California median
Medicare services
14vs 5876% below

Medians across 3,823 OB-GYNs in California with Dmand AI profiles that report each measure.

Dr. Wong's most billed Medicare procedure codes, 2022

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Wong

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Wong and other OB-GYNs in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Ann Wong's patients have a median age of 45

Across all payers, Dmand AI patient panel data puts Dr. Wong's median patient age at 45, with 94% women.

Dr. Wong's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 45

Patient panel by sex, all payers

  • Women94%
  • Men6%

Source: Dmand AI Patient Panel Data

Dr. Ann Wong wrote 15 Medicare Part D claims in 2024

In 2024, Dr. Wong wrote 15 Medicare Part D claims.

Part D claims, 202415

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. Ann Wong has 21 publications on record

Dmand AI links 21 papers to Dr. Wong, published from 2009 to 2020. 2012 was the busiest year, with 4. The most frequent topics are Cochlea, Hearing Loss, Noise-Induced and Mice, Inbred C57BL. Dr. Wong has published most often in Hear Res.

Papers21
Years published2009 to 2020

Dr. Wong's papers by year, 2009 to 2020

Topics Dr. Wong writes about most

  • Cochlea
  • Hearing Loss, Noise-Induced
  • Mice, Inbred C57BL
  • Auditory Threshold
  • Disease Models, Animal
  • Evoked Potentials, Auditory, Brain Stem
  • Noise
  • Rats, Wistar

Recent publications by Dr. Wong

See all 21 publications and co-authors

See who Dr. Wong researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Wong works with, so you can find a warm path to the right OB-GYNs.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Ann Wong received $254 in industry payments from 2016 to 2018

CMS Open Payments shows 3 general payments to Dr. Wong from 3 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $125.

General payments to Dr. Wong by program year, 2016 to 2018

Companies that paid Dr. Wong the most, 2016 to 2018

Share is of all general payments to this clinician.

See all payments to Dr. Wong

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Ann Wong graduated from George Washington University School of Medicine and Health Sciences

Dr. Wong graduated from George Washington University School of Medicine and Health Sciences in 1997.

  1. Medical schoolGeorge Washington University School of Medicine and Health Sciences
  2. Board certified in obstetrics & gynecologyAmerican Board of Obstetrics and Gynecology

Source: Dmand AI Professional Profile Data

Dr. Ann Wong accepts plans from 2 insurance carriers

Dr. Wong is in network with 2 carriers, including Elevance and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.

  • Elevance
  • Blue Cross Blue Shield of Michigan

Plan types Dr. Wong accepts, by number of carriers

  1. HMO2
  2. POS2
  3. PPO2
  4. EPO1
  5. Medicare1

Source: Dmand AI Insurance Network Data

Sources for Dr. Ann Wong's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Ann Wong

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Ann Wong's NPI number?

Dr. Ann Wong's NPI number is 1093815607. It was assigned on September 24, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Ann Wong?

Dr. Ann Wong is an OB-GYN in Los Gatos, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).

Where does Dr. Ann Wong practice?

Dr. Wong practices at 877 W Fremont Ave Ste N Suite N, Sunnyvale, CA 94087. Dr. Wong also practices at 815 Pollard Rd, Los Gatos, CA 95032. Dr. Wong's primary practice is Palo Alto Medial Foundation - OB/GYN & Women's Health - Sunnyvale (W Fremont Ave) in Sunnyvale, California.

What is Dr. Ann Wong's office phone number?

The practice phone on file for Dr. Wong is (408) 730-4240.

What is Dr. Ann Wong's medical license number?

Dr. Wong's California license number on file is A60127.

What medical group is Dr. Ann Wong part of?

Dr. Wong is linked to Palo Alto Foundation Medical Group.

Does Dr. Ann Wong accept Medicare?

Yes. CMS data shows Dr. Wong billed Medicare for 14 services in 2022.

Is Dr. Ann Wong board certified?

Yes. Dr. Wong is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.

What services does Dr. Ann Wong bill to Medicare?

In 2022, Dr. Wong's most billed Medicare services were office visit, established patient (99213).

Where did Dr. Ann Wong go to medical school?

Dr. Wong graduated from George Washington University School of Medicine and Health Sciences in 1997.

Show 4 more questionsShow fewer questions

Has Dr. Ann Wong received payments from drug or device companies?

CMS Open Payments shows $254 in general payments to Dr. Wong from 3 companies from 2016 to 2018. The largest total came from Sanofi and Genzyme US Companies.

How long has Dr. Ann Wong been practicing?

Dr. Wong graduated from medical school in 1997, 29 years ago.

Does Dr. Ann Wong do research?

Dmand AI links 21 publications to Dr. Wong, published from 2009 to 2020.

What insurance does Dr. Ann Wong accept?

Dr. Wong is in network with 2 carriers, including Elevance and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.

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