NPPES file of Aug 9, 2026

Foster Ahn Hays, M.D

Psychiatry Physician · Madison, WI

Foster Ahn Hays, M.D is a psychiatry physician with a practice address in Madison, Wisconsin, and NPI 1609253459, issued on Apr 30, 2015. Check the license (Wisconsin 71377, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1609253459
Name
Foster Ahn Hays
Credential
M.D
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
71377 WI
Self-reported in NPPES; status is on the state search
Practice location
752 N High Point RD, Madison, WI 53717
Phone
(608) 824-4000
Enumerated
Apr 30, 2015
Record last updated
Nov 23, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(608) 824-4938
Medicaid ID
1609253459 WI
Medicare enrollment
Enrolled (PECOS I20190716001573); accepts Medicare assignment
Medical or professional school
University Of Texas Southwestern Medical School At Dallas, 2015
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 752 N High Point RD

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

  1. Carleen Acker, PA-CPhysician Assistant1447514773
  2. Justin Amarnani, M.DFamily Medicine Physician1164866059
  3. Clifford Anderson, MDInternal Medicine Physician1487691788
  4. Sara Anderson-Kim, APNPNurse Practitioner1902057052
  5. Conrad Andringa, MDPediatrics Physician1528002581
  6. Timothy Baardseth, PH.D.Psychologist1104169218

Verify Foster Ahn Hays in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 71377
    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 Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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4.8 times the Medicare Part D claims of the average psychiatry physician in 2024

4,752 Medicare Part D claims for 345 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Foster Hays4,752
  2. Specialty average1,000

Most prescribed

  1. Clonazepam332 claims
  2. Lorazepam242 claims
  3. Duloxetine Hcl229 claims
  4. Bupropion Xl177 claims
  5. Lamotrigine168 claims
  6. Alprazolam166 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

  1. Dean Health Systems IncMadison, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Foster Ahn Hays among 929 psychiatry physician records in Wisconsin

Foster Ahn Hays, M.D is one of 929 psychiatry physician records with a practice address in Wisconsin. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 77% of them.

  • NPI issued2015 · 77% of these records are older, 22% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 47% of these records are
  • Graduated2015 · median 2005 among the 439 with a school on file
  • Record last updated2020 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

232 psychiatry physician records list a practice address in Madison

They are 232 of the 15,014 NPPES records with a practice address in Madison, and 929 psychiatry physician records in Wisconsin.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Amy Bourne, MDMadison, WI 537171902820343
  2. Travis Copeland, MDMadison, WI 537171114963709
  3. David Dowell, MDMadison, WI 537171730117292
  4. Pariss Dspain, DOMadison, WI 537171134862824
  5. Melissa Gannage, M.D.Madison, WI 537171710181698
  6. Zorislav Greblo, MDMadison, WI 537171538320700
  7. John Greist, M.D.Madison, WI 537171598961005
  8. Kathleen Hughes-Kuda, MDMadison, WI 537171518022748

Common questions

What is Foster Ahn Hays, M.D's NPI number?

Foster Ahn Hays, M.D's National Provider Identifier (NPI) is 1609253459, issued on Apr 30, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Foster Ahn Hays, M.D located?

The NPPES record lists a practice address at 752 N High Point RD, Madison, WI, 53717. Phone: (608) 824-4000. Providers update this record themselves, so call before visiting.

How can I verify Foster Ahn Hays, M.D's license?

NPPES lists Wisconsin license number 71377, 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 Foster Ahn Hays, M.D prescribe under Medicare Part D?

In 2024, Foster Ahn Hays, M.D had 4,752 Medicare Part D claims for 345 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.