Peter Welles Williams, MD
Psychiatry Physician · Sparks, MD
Peter Welles Williams, MD is a psychiatry physician with a practice address in Sparks, Maryland, and NPI 1568736015, issued on Mar 1, 2012. Check the license (Maryland D27512, as entered in NPPES) on the Maryland Board of Physicians; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Peter Welles Williams
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- D27512 MD
Self-reported in NPPES; status is on the state search - Practice location
- 4 Sparks Station RD, Sparks, MD 21152
- Phone
- (410) 472-0683
- Enumerated
- Mar 1, 2012
- Record last updated
- Mar 1, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (410) 472-2103
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,451 in Maryland → Look up another NPI →
Verify Peter Welles Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D27512Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Peter Welles Williams among 1,451 psychiatry physician records in Maryland
Peter Welles Williams, MD is one of 1,451 psychiatry physician records with a practice address in Maryland. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2012, is newer than 75% of them.
- NPI issued2012 · 75% of these records are older, 24% newer
- In a Medicare fileNo · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · 36% of these records are
- Record last updated2012 · 60% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 psychiatry physician records list a practice address in Sparks
They are 2 of the 273 NPPES records with a practice address in Sparks, and 1,451 psychiatry physician records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,451 in Maryland → Every provider in Sparks → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Bruce Hershfield, MDSparks, MD 211521164529079
- Julie Brownley, M.D., PH.D.Westminster, MD 211571679928873
- Michelle Hornbaker-Park, M.D.Westminster, MD 211571265673263
- Glenda Housel, M.D.Westminster, MD 211571891714853
- Zaw Htwe, M.DWestminster, MD 211571952598955
- Rajendra Lowtan, M.D.Westminster, MD 211571467474049
- Judith Milliken, M.D.Westminster, MD 211571982760831
- Shama Milon, M.D.Westminster, MD 211571790226926
Common questions
What is Peter Welles Williams, MD's NPI number?
Peter Welles Williams, MD's National Provider Identifier (NPI) is 1568736015, issued on Mar 1, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Peter Welles Williams, MD located?
The NPPES record lists a practice address at 4 Sparks Station RD, Sparks, MD, 21152. Phone: (410) 472-0683. Providers update this record themselves, so call before visiting.
How can I verify Peter Welles Williams, MD's license?
NPPES lists Maryland license number D27512, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.