Donald Gustave Ammerman, M.D.
Psychiatry Physician · Danbury, CT
Donald Gustave Ammerman, M.D. is a psychiatry physician with a practice address in Danbury, Connecticut, and NPI 1316032295, issued on Oct 4, 2006. Check the license (Connecticut 047925, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Donald Gustave Ammerman
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- 047925 CT
RT1438 NH
Self-reported in NPPES; status is on the state search - Practice location
- 84 Hospital Ave, Danbury, CT 06810
- Phone
- (203) 792-6060
- Enumerated
- Oct 4, 2006
- Record last updated
- Aug 20, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20091103000486); accepts Medicare assignment
- Medical or professional school
- University Of Connecticut School Of Medicine, 2005
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 84 Hospital Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karin Bogart, LADCAddiction (Substance Use Disorder) Counselor1093821662
- Ellen Casale, LMFTMarriage & Family Therapist1912269333
- Lauren Castaldi, PA-CPhysician Assistant1548724255
- Jessica Chaudhary, M.D.Psychiatry Physician1801070107
- Sandra Cole, LCSWClinical Social Worker1255442182
- Jacqueline Crnic, MSW,LCSWSocial Worker1487755278
Verify Donald Gustave Ammerman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 047925Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% fewer Medicare Part D claims than the average psychiatry physician in 2024
889 Medicare Part D claims for 81 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Bupropion Xl58 claims
- Trazodone Hcl57 claims
- Quetiapine Fumarate53 claims
- Sertraline Hcl47 claims
- Escitalopram Oxalate43 claims
- Fluoxetine Hcl43 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.
Industry payments in 2024: $279,656.80
389 payments; by number, the most common kind was travel and lodging; the largest payer was Abbvie Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Contemporary Care LLCGreenwich, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
35 psychiatry physician records list a practice address in Danbury
They are 35 of the 2,412 NPPES records with a practice address in Danbury, and 1,174 psychiatry physician records in Connecticut.
All 35 in Danbury → All 1,174 in Connecticut → Every provider in Danbury →
Other psychiatry physician records in Connecticut
- Enenge A'Bodjedi, MDStamford, CT1952310666
- Chadi Abdallah, M.D.West Haven, CT1851591820
- Sarah AbdallahNew Haven, CT1740800952
- Elie AbdelnourNew Haven, CT1790346070
- Yasmeen Abdul-KarimNew Haven, CT1609296292
- Jessica Abellard, PSYCHIATRISTNew Haven, CT1881906139
- Mariam Aboukar, D.O.New London, CT1013448620
- Irene Abramovich, M.D.West Hartford, CT1407864887
- Linus Abrams, M.D.Greenwich, CT1073675922
- Tia Maria Acosta, M.D.Willimantic, CT1679582167
Common questions
What is Donald Gustave Ammerman, M.D.'s NPI number?
Donald Gustave Ammerman, M.D.'s National Provider Identifier (NPI) is 1316032295, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Donald Gustave Ammerman, M.D. located?
The NPPES record lists a practice address at 84 Hospital Ave, Danbury, CT, 06810. Phone: (203) 792-6060. Providers update this record themselves, so call before visiting.
How can I verify Donald Gustave Ammerman, M.D.'s license?
NPPES lists Connecticut license number 047925, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Donald Gustave Ammerman, M.D. prescribe under Medicare Part D?
In 2024, Donald Gustave Ammerman, M.D. had 889 Medicare Part D claims for 81 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.