Dr. John Thomas Anstey, MD
- Medicare services, 2021
- 432
- Part D claims, 2024
- 14
- Industry payments
- $388
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 3009 N Ballas Road, Saint Louis, MO 63131-2322
- Practice phone
- Call (314) 432-2880
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St Ann OB GYN
Women's health practice · Saint Louis, Missouri
Find Dr. Anstey's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John Thomas Anstey is an OB-GYN in Missouri
Dr. Anstey practices at St Ann OB GYN in Saint Louis, Missouri.
Dr. Anstey's NPI, 1669470878, was assigned on July 12, 2005. Dr. Anstey holds Missouri license R5841.
- NPI
- 1669470878NPI Registry (opens in a new tab)
- NPI enumeration date
- July 12, 2005
- NPI status
- Active
- Practice phone
- (314) 432-2880
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Thomas Anstey practices at St Ann OB GYN in Saint Louis, Missouri
Dr. Anstey's primary practice is St Ann OB GYN, at 3009 N Ballas Road, Saint Louis, MO 63131-2322. The practice phone is (314) 432-2880.
- St Ann OB GYN3009 N Ballas Road, Saint Louis, MO 63131-2322Phone(314) 432-2880
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Thomas Anstey is affiliated with 1 site of care and 1 medical group
Dr. Anstey's primary practice is St Ann OB GYN in Saint Louis, Missouri. Dmand AI also links Dr. Anstey to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. John Thomas Anstey's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Anstey practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St Ann OB GYN | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Thomas Anstey is one of 712 OB-GYNs in Missouri
Obstetrics and gynecology is Dr. Anstey's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Anstey is licensed in Missouri.
Specialties and state licenses
- Obstetrics and gynecology, MissouriPrimary
OB-GYNs near Dr. Anstey
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. John Thomas Anstey billed Medicare for 432 services in 2021
CMS data shows 432 Medicare services from Dr. Anstey across 4 procedure codes in 2021. Medicare paid $16,720 for them. Every service was in an office.
Dr. Anstey's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Other services
- 2020: 2082021: 24518%
- Office and hospital visits
- 2020: 1052021: 1127%
- Imaging
- 2020: 762021: 751%
Dr. Anstey compared with the Missouri median for OB-GYNs, 2021
- Dr. Anstey
- Missouri median
- Medicare services
- 432vs 538.2 times
- Part D claims
- 208vs 454.6 times
Medians across 650 OB-GYNs in Missouri with Dmand AI profiles that report each measure.
Dr. Anstey's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Anstey?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Anstey and other OB-GYNs in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Thomas Anstey's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Anstey's median patient age at 66, with 94% women.
Dr. Anstey's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women94%
- Men6%
Source: Dmand AI Patient Panel Data
Dr. John Thomas Anstey wrote 14 Medicare Part D claims in 2024
In 2024, Dr. Anstey wrote 14 Medicare Part D claims. 100% of them were for generic drugs. They cover 9 drugs, with $7,447 in total drug cost. In 2021, CMS named 1,062 claims across 35 drugs.
Dr. Anstey's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 1,0622022: 20880%
Drugs named by CMS: 9 in 2022, 35 in 2021.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. John Thomas Anstey received $388 in industry payments from 2017 to 2018
CMS Open Payments shows 6 general payments to Dr. Anstey from 2 drug and device companies from 2017 to 2018. Travel and lodging make up the largest share, 79% of the total. Abbott Laboratories paid the most, $377.
General payments to Dr. Anstey by program year, 2017 to 2018
General payments to Dr. Anstey by kind, 2017 to 2018
- Travel and lodging$30879%
- Food and beverage$8121%
Companies that paid Dr. Anstey the most, 2017 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John Thomas Anstey's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John Thomas Anstey
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. John Thomas Anstey's NPI number?
Dr. John Thomas Anstey's NPI number is 1669470878. It was assigned on July 12, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John Thomas Anstey?
Dr. John Thomas Anstey is an OB-GYN in Missouri. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. John Thomas Anstey practice?
Dr. Anstey practices at 3009 N Ballas Road, Saint Louis, MO 63131-2322. Dr. Anstey's primary practice is St Ann OB GYN in Saint Louis, Missouri. Dmand AI also links Dr. Anstey to 1 medical group.
What is Dr. John Thomas Anstey's office phone number?
The practice phone on file for Dr. Anstey is (314) 432-2880.
What is Dr. John Thomas Anstey's medical license number?
Dr. Anstey holds Missouri license R5841.
Does Dr. John Thomas Anstey accept Medicare?
Yes. CMS data shows Dr. Anstey billed Medicare for 432 services in 2021.
What services does Dr. John Thomas Anstey bill to Medicare?
In 2021, Dr. Anstey's most billed Medicare services were medicare service (G0101), office visit, established patient (99212) and radiation oncology (77080).
What drugs does Dr. John Thomas Anstey prescribe most?
In 2022 Medicare Part D data, Dr. Anstey's most prescribed drugs by claims were Estradiol, Raloxifene HCl and Medroxyprogesterone Acetate.
Has Dr. John Thomas Anstey received payments from drug or device companies?
CMS Open Payments shows $388 in general payments to Dr. Anstey from 2 companies from 2017 to 2018. The largest total came from Abbott Laboratories.
How long has Dr. John Thomas Anstey been practicing?
Dr. Anstey's NPI was assigned in 2005.
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