Jan Master, CRNP
NPI 1437134434 · Nurse Practitioner · Alexandria, VA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jan Master, CRNP is a Nurse Practitioner provider in Alexandria, VA (NPI 1437134434).
Provider details
- NPI number
- 1437134434
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Female
- Sole proprietor
- No
- License
- 0024164081 (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 tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$533 across 18 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
Registry dates
- Enumerated
- 2005-12-13
- Last updated
- 2023-11-28
- Certified
- 2023-11-28
Frequently asked questions
- What is Jan Master's NPI number?
- Jan Master's National Provider Identifier (NPI) is 1437134434, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jan Master's specialty?
- Jan Master is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jan Master located?
- Jan Master's practice location on file with NPPES is 6355 Walker Ln, Alexandria, VA 22310-3245.
- What is Jan Master's phone number?
- The practice phone number listed in the NPPES registry for Jan Master is (703) 971-7633.
- Does Jan Master accept Medicare?
- Jan Master is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jan Master's NPI active?
- Yes — Jan Master's NPI (1437134434) is active in the NPPES registry as of the last update on 2023-11-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.