Guy Williams, M.D.
NPI 1144616178 · Psychiatry Physician · Towson, MD
Guy Williams, M.D. is a Psychiatry Physician provider in Towson, MD (NPI 1144616178).
Provider details
- NPI number
- 1144616178
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D0083270 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Amitriptyline Hcl | 21 |
| Trazodone Hcl | 14 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 12 |
| Lamotriginebrand: Lamotrigine Er | 12 |
| Clonazepam | 11 |
| Pregabalin | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-07
- Last updated
- 2019-07-16
Frequently asked questions
- What is Guy Williams's NPI number?
- Guy Williams's National Provider Identifier (NPI) is 1144616178, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Guy Williams's specialty?
- Guy Williams is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Guy Williams located?
- Guy Williams's practice location on file with NPPES is 6501 N Charles St, Towson, MD 21204-6819.
- What is Guy Williams's phone number?
- The practice phone number listed in the NPPES registry for Guy Williams is (410) 938-3000.
- Is Guy Williams's NPI active?
- Yes — Guy Williams's NPI (1144616178) is active in the NPPES registry as of the last update on 2019-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.