Crystal Williams
NPI 1477026045 · Psychiatric/Mental Health Nurse Practitioner · Columbia, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Crystal Williams is a Psychiatric/Mental Health Nurse Practitioner provider in Columbia, MD (NPI 1477026045).
Provider details
- NPI number
- 1477026045
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- R234872 (MD)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
141 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 63 | $112 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 40 | $148 |
| Detection Test By Immunoassay With Direct Visual Observation for Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19)87811 | 24 | $41 |
| Automated Urinalysis Test81003 | 14 | $2 |
Typical Medicare-allowed amounts for these services range $2–$148 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 67 | 58 |
| Cyclobenzaprine Hcl | 42 | 41 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 27 | 27 |
| Gabapentin | 23 | 21 |
| Prednisone | 15 | 15 |
| Tramadol Hcl | 12 | 12 |
| Daptomycin | 11 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$39 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 22 S Greene StBaltimore, MD 21201-1544Phone: (410) 328-2592
Registry dates
- Enumerated
- 2019-01-07
- Last updated
- 2026-06-02
- Certified
- 2026-06-02
Frequently asked questions
- What is Crystal Williams's NPI number?
- Crystal Williams's National Provider Identifier (NPI) is 1477026045, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Williams's specialty?
- Crystal Williams is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Crystal Williams located?
- Crystal Williams's practice location on file with NPPES is 8890 Mcgaw Rd Ste 350-360, Columbia, MD 21045-4743.
- What is Crystal Williams's phone number?
- The practice phone number listed in the NPPES registry for Crystal Williams is (301) 317-6575.
- Does Crystal Williams accept Medicare?
- Crystal Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Crystal Williams's NPI active?
- Yes — Crystal Williams's NPI (1477026045) is active in the NPPES registry as of the last update on 2026-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.