Nancy A. Williams, MD
Psychiatry Physician · Iowa City, IA
Nancy A. Williams, MD is a psychiatry physician with a practice address in Iowa City, Iowa, and NPI 1093701625, issued on Sep 20, 2005. Check the license (Iowa 32404, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Nancy A. Williams
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 32404 IA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Hawkins Dr, Iowa City, IA 52242
- Phone
- (319) 356-1616
- Enumerated
- Sep 20, 2005
- Record last updated
- Dec 19, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (319) 356-2587
- Medicaid ID
- 0179515 IA
- Medicare enrollment
- Enrolled (PECOS I20061016000218); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 1994
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 398 in Iowa → Look up another NPI →
Also registered at 200 Hawkins Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nancy A. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 32404Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% fewer Medicare Part D claims than the average psychiatry physician in 2024
724 Medicare Part D claims for 40 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Risperidone78 claims
- Lorazepam57 claims
- Trazodone Hcl56 claims
- Clonazepam54 claims
- Clozapine49 claims
- Benztropine Mesylate47 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
- State University OF IowaIowa City, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nancy A. Williams among 398 psychiatry physician records in Iowa
Nancy A. Williams, MD is one of 398 psychiatry physician records with a practice address in Iowa. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 47% of these records are
- Graduated1994 · median 2010 among the 188 with a school on file
- Record last updated2007 · 53% 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 Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
144 psychiatry physician records list a practice address in Iowa City
They are 144 of the 7,163 NPPES records with a practice address in Iowa City, and 398 psychiatry physician records in Iowa.
All 398 in Iowa → Every provider in Iowa City → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- William Coryell, MDIowa City, IA 522421770578452
- Raymond Crowe, MDIowa City, IA 522421568457232
- Michael Garvey, MDIowa City, IA 522421578558243
- Beng Choon Ho, MDIowa City, IA 522421407841174
- Vicki Kijewski, MDIowa City, IA 522421417942178
- Douglas Langbehn, MDIowa City, IA 522421205821972
- Peggy Nopoulos, MDIowa City, IA 522421326033002
- Sergio Paradiso, MDIowa City, IA 522421215922968
Common questions
What is Nancy A. Williams, MD's NPI number?
Nancy A. Williams, MD's National Provider Identifier (NPI) is 1093701625, issued on Sep 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Nancy A. Williams, MD located?
The NPPES record lists a practice address at 200 Hawkins Dr, Iowa City, IA, 52242. Phone: (319) 356-1616. Providers update this record themselves, so call before visiting.
How can I verify Nancy A. Williams, MD's license?
NPPES lists Iowa license number 32404, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nancy A. Williams, MD prescribe under Medicare Part D?
In 2024, Nancy A. Williams, MD had 724 Medicare Part D claims for 40 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.