Susan Williams, APRN
NPI 1548395015 · Adult Psychiatric/Mental Health Clinical Nurse Specialist · Palmer, MA
Enrolled with Medicare as Practitioner - Certified Clinical Nurse Specialist (cns) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Susan Williams, APRN is a Adult Psychiatric/Mental Health Clinical Nurse Specialist provider in Palmer, MA (NPI 1548395015).
Provider details
- NPI number
- 1548395015
- Entity type
- Individual
- Primary specialty
- Adult Psychiatric/Mental Health Clinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Female
- Sole proprietor
- No
- License
- 174113 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
424 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 249 | $106 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 120 | $73 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 43 | $84 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 12 | $61 |
Typical Medicare-allowed amounts for these services range $61–$106 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 61 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 800 | 111 |
| Lorazepam | 343 | 55 |
| Fluoxetine Hcl | 287 | 45 |
| Trazodone Hcl | 274 | 69 |
| Quetiapine Fumarate | 267 | 50 |
| Sertraline Hcl | 227 | 40 |
| Hydroxyzine Pamoate | 223 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-23
- Last updated
- 2016-11-28
Frequently asked questions
- What is Susan Williams's NPI number?
- Susan Williams's National Provider Identifier (NPI) is 1548395015, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Susan Williams's specialty?
- Susan Williams is listed in the NPPES registry with a primary specialty of Adult Psychiatric/Mental Health Clinical Nurse Specialist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Susan Williams located?
- Susan Williams's practice location on file with NPPES is 42 Wright St, Palmer, MA 01069-1156.
- What is Susan Williams's phone number?
- The practice phone number listed in the NPPES registry for Susan Williams is (413) 284-5285.
- Does Susan Williams accept Medicare?
- Susan Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Susan Williams's NPI active?
- Yes — Susan Williams's NPI (1548395015) is active in the NPPES registry as of the last update on 2016-11-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.