Anna Christa Stamas, DO
Family Medicine Physician · Watertown, WI
Anna Christa Stamas, DO is a family medicine physician with a practice address in Watertown, Wisconsin, and NPI 1376172007, issued on Apr 4, 2020. Check the license (Wisconsin 8109021, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Anna Christa Stamas
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 8109021 WI
Self-reported in NPPES; status is on the state search - Practice location
- 127 Hospital Dr, Watertown, WI 53098
- Phone
- (920) 261-8500
- Enumerated
- Apr 4, 2020
- Record last updated
- Jun 1, 2023
- Medicare enrollment
- Enrolled (PECOS I20230720003681); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 127 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Basarich, MDFamily Medicine Physician1033178512
- Bruce Cochrane, M.D.Family Medicine Physician1922176064
- Melodie Defouw, APNPFamily Nurse Practitioner1881164481
- Alyssa Flagge, PA-CPhysician Assistant1356074512
- Frederick Gremmels, D.O.Family Medicine Physician1720156896
- Richard Holden, M.D.Family Medicine Physician1215005368
Verify Anna Christa Stamas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 8109021Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average family medicine physician in 2024
1,899 Medicare Part D claims for 250 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 42 claims were for opioids.
Most prescribed
- Fluticasone Propionate102 claims
- Rosuvastatin Calcium60 claims
- Levothyroxine Sodium59 claims
- Omeprazole52 claims
- Amlodipine Besylate46 claims
- Furosemide42 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.
Bills Medicare through one group practice
- Watertown Family Practice Associates, SCWatertown, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anna Christa Stamas among 3,765 family medicine physician records in Wisconsin
Anna Christa Stamas, DO is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 89% of them.
- NPI issued2020 · 89% of these records are older, 9% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2020 · median 2007 among the 2,347 with a school on file
- Record last updated2023 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 family medicine physician records list a practice address in Watertown
They are 13 of the 366 NPPES records with a practice address in Watertown, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Watertown → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- John Basarich, MDWatertown, WI 530981033178512
- Bruce Cochrane, M.D.Watertown, WI 530981922176064
- Leslie Golden, MDWatertown, WI 530981336401736
- Frederick Gremmels, D.O.Watertown, WI 530981720156896
- Richard Holden, M.D.Watertown, WI 530981215005368
- Robert Legrow, M.D.Watertown, WI 530981013908771
- Michael Sullivan, M.D.Watertown, WI 530981093883142
- Danielle Tonelli, DOWatertown, WI 530981083806814
Common questions
What is Anna Christa Stamas, DO's NPI number?
Anna Christa Stamas, DO's National Provider Identifier (NPI) is 1376172007, issued on Apr 4, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Anna Christa Stamas, DO located?
The NPPES record lists a practice address at 127 Hospital Dr, Watertown, WI, 53098. Phone: (920) 261-8500. Providers update this record themselves, so call before visiting.
How can I verify Anna Christa Stamas, DO's license?
NPPES lists Wisconsin license number 8109021, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Anna Christa Stamas, DO prescribe under Medicare Part D?
In 2024, Anna Christa Stamas, DO had 1,899 Medicare Part D claims for 250 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.