Dr. Michael Samuel Amster, MD
- Industry payments
- $2,384
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2005
- Practice address
- 550 Hospital Dr, Warrenton, VA 20186
- Practice phone
- Call (540) 316-5940
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Fauquier Physician Practices
Warrenton, Virginia
Find Dr. Amster'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. Michael Samuel Amster is a pediatrician in Warrenton, Virginia
Dr. Amster practices at Fauquier Physician Practices in Warrenton, Virginia.
Dr. Amster's NPI, 1821097478, was assigned on July 17, 2005. Dr. Amster holds Virginia license 0101231776.
- NPI
- 1821097478NPI Registry (opens in a new tab)
- NPI enumeration date
- July 17, 2005
- NPI status
- Active
- Practice phone
- (540) 316-5940
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Michael Samuel Amster practices at Fauquier Physician Practices in Warrenton, Virginia
Dr. Amster's primary practice is Fauquier Physician Practices, at 550 Hospital Dr, Warrenton, VA 20186 in Fauquier County. The practice phone is (540) 316-5940.
- Fauquier Physician Practices550 Hospital Dr, Warrenton, VA 20186 · Fauquier CountyPhone(540) 316-5940
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Michael Samuel Amster is affiliated with 3 sites of care and 1 medical group
Dr. Amster's primary practice is Fauquier Physician Practices in Warrenton, Virginia. The medical group on file is Fauquier Health Physician Services. Dmand AI also links Dr. Amster to 1 more physician office and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Michael Samuel Amster's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Amster practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fauquier Physician Practices | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael Samuel Amster is one of 1,669 pediatricians in Virginia
Pediatrics is Dr. Amster's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Amster is licensed in Virginia.
Specialties and state licenses
- Pediatrics, VirginiaPrimary
Pediatricians near Dr. Amster
Counts of pediatricians 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. Michael Samuel Amster's patients have a median age of 10
Across all payers, Dmand AI patient panel data puts Dr. Amster's median patient age at 10, with 42% women.
Dr. Amster's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 10
Patient panel by sex, all payers
- Women42%
- Men57%
Source: Dmand AI Patient Panel Data
Dr. Michael Samuel Amster received $2,384 in industry payments from 2016 to 2025
CMS Open Payments shows 117 general payments to Dr. Amster from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 93% of the total. Pfizer Inc. paid the most, $292.
General payments to Dr. Amster by program year, 2016 to 2025
General payments to Dr. Amster by kind, 2016 to 2025
- Food and beverage$2,22393%
- Gifts$1165%
- Travel and lodging$452%
Companies that paid Dr. Amster the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Michael Samuel Amster'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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. Michael Samuel Amster
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. Michael Samuel Amster's NPI number?
Dr. Michael Samuel Amster's NPI number is 1821097478. It was assigned on July 17, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Samuel Amster?
Dr. Michael Samuel Amster is a pediatrician in Warrenton, Virginia. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Michael Samuel Amster practice?
Dr. Amster practices at 550 Hospital Dr, Warrenton, VA 20186. Dr. Amster's primary practice is Fauquier Physician Practices in Warrenton, Virginia. Dmand AI also links Dr. Amster to 1 physician office and 1 group practice or clinic, and a free account names each one.
What is Dr. Michael Samuel Amster's office phone number?
The practice phone on file for Dr. Amster is (540) 316-5940. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Michael Samuel Amster's email address?
Dmand AI checks professional and personal email addresses for Dr. Amster through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Michael Samuel Amster's medical license number?
Dr. Amster holds Virginia license 0101231776.
What medical group is Dr. Michael Samuel Amster part of?
Dr. Amster is linked to Fauquier Health Physician Services.
Who does Dr. Michael Samuel Amster practice with?
Dmand AI links 43 HCPs to Dr. Amster's primary medical group, 2 of them pediatricians. A free account lists them, with verified contacts.
Has Dr. Michael Samuel Amster received payments from drug or device companies?
CMS Open Payments shows $2,384 in general payments to Dr. Amster from 26 companies from 2016 to 2025. The largest total came from Pfizer Inc.
How long has Dr. Michael Samuel Amster been practicing?
Dr. Amster's NPI was assigned in 2005.
What EHR does Dr. Michael Samuel Amster's practice use?
Dmand AI tracks the EHR system at Fauquier Physician Practices and at 2 more affiliated sites. The vendor and product are available with a free Dmand AI account.
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