Callie Watanabe, MD
NPI 1861061921 · Family Medicine Physician · Agana Heights, GU
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Callie Watanabe, MD is a Family Medicine Physician provider in Agana Heights, GU (NPI 1861061921).
Provider details
- NPI number
- 1861061921
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0116035606 (VA)
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
5 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
- 2021-06-23
- Last updated
- 2025-03-13
- Certified
- 2025-03-11
Frequently asked questions
- What is Callie Watanabe's NPI number?
- Callie Watanabe's National Provider Identifier (NPI) is 1861061921, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Callie Watanabe's specialty?
- Callie Watanabe is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Callie Watanabe located?
- Callie Watanabe's practice location on file with NPPES is U.S. Naval Hospital Guam, Agana Heights, GU 96910.
- What is Callie Watanabe's phone number?
- The practice phone number listed in the NPPES registry for Callie Watanabe is (671) 344-9222.
- Does Callie Watanabe accept Medicare?
- Callie Watanabe is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Callie Watanabe's NPI active?
- Yes — Callie Watanabe's NPI (1861061921) is active in the NPPES registry as of the last update on 2025-03-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.