Masayo Watanabe, M.D.
NPI 1699734434 · Pediatric Hematology & Oncology Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Masayo Watanabe, M.D. is a Pediatric Hematology & Oncology Physician provider in Phoenix, AZ (NPI 1699734434).
Provider details
- NPI number
- 1699734434
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 34199 (AZ)
Specialties & taxonomies
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
- 2006-03-21
- Last updated
- 2018-03-29
Frequently asked questions
- What is Masayo Watanabe's NPI number?
- Masayo Watanabe's National Provider Identifier (NPI) is 1699734434, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Masayo Watanabe's specialty?
- Masayo Watanabe is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Masayo Watanabe located?
- Masayo Watanabe's practice location on file with NPPES is 1919 E Thomas Rd, Phoenix, AZ 85016-7710.
- What is Masayo Watanabe's phone number?
- The practice phone number listed in the NPPES registry for Masayo Watanabe is (602) 933-0920.
- Does Masayo Watanabe accept Medicare?
- Masayo Watanabe is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Masayo Watanabe's NPI active?
- Yes — Masayo Watanabe's NPI (1699734434) is active in the NPPES registry as of the last update on 2018-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.