Grayce Hamlin, FNP
NPI 1598446031 · Nurse Practitioner · Lorton, VA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grayce Hamlin, FNP is a Nurse Practitioner provider in Lorton, VA (NPI 1598446031).
Provider details
- NPI number
- 1598446031
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0024187651 (VA)
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 tenure28% of score
2 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
239 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 121 | $85 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 53 | $116 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 22 | $157 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 19 | $101 |
| Administration of Pneumococcal VaccineG0009 | 13 | $36 |
| Administration of Influenza Virus VaccineG0008 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 43 | 22 |
| Morphine Sulfate | 42 | — |
| Atorvastatin Calcium | 32 | 11 |
| Fluticasone Propion/Salmeterolbrand: Fluticasone-Salmeterol | 24 | — |
| Diazepam | 23 | — |
| Oxycodone Hclbrand: Oxycontin | 23 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-07-27
- Last updated
- 2025-05-28
- Certified
- 2025-05-28
Frequently asked questions
- What is Grayce Hamlin's NPI number?
- Grayce Hamlin's National Provider Identifier (NPI) is 1598446031, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grayce Hamlin's specialty?
- Grayce Hamlin is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Grayce Hamlin located?
- Grayce Hamlin's practice location on file with NPPES is 8988 Lorton Station Blvd Ste 201, Lorton, VA 22079-4758.
- What is Grayce Hamlin's phone number?
- The practice phone number listed in the NPPES registry for Grayce Hamlin is (703) 339-7550.
- Does Grayce Hamlin accept Medicare?
- Grayce Hamlin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grayce Hamlin's NPI active?
- Yes — Grayce Hamlin's NPI (1598446031) is active in the NPPES registry as of the last update on 2025-05-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.