Holly Alfrey-Van Dyk, MD
NPI 1639106792 · Obstetrics & Gynecology Physician · Tuba City, AZ
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Holly Alfrey-Van Dyk, MD is a Obstetrics & Gynecology Physician provider in Tuba City, AZ (NPI 1639106792).
Provider details
- NPI number
- 1639106792
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 27719 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-26
- Last updated
- 2011-06-29
Frequently asked questions
- What is Holly Alfrey-Van Dyk's NPI number?
- Holly Alfrey-Van Dyk's National Provider Identifier (NPI) is 1639106792, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Holly Alfrey-Van Dyk's specialty?
- Holly Alfrey-Van Dyk is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Holly Alfrey-Van Dyk located?
- Holly Alfrey-Van Dyk's practice location on file with NPPES is 167 North Main Street, Tuba City, AZ 86045-0600.
- What is Holly Alfrey-Van Dyk's phone number?
- The practice phone number listed in the NPPES registry for Holly Alfrey-Van Dyk is (928) 283-2501.
- Does Holly Alfrey-Van Dyk accept Medicare?
- Holly Alfrey-Van Dyk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Holly Alfrey-Van Dyk's NPI active?
- Yes — Holly Alfrey-Van Dyk's NPI (1639106792) is active in the NPPES registry as of the last update on 2011-06-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.