Masato Nagao, M D PH D
NPI 1588619159 · Physical Medicine & Rehabilitation Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Masato Nagao, M D PH D is a Physical Medicine & Rehabilitation Physician provider in San Francisco, CA (NPI 1588619159).
Provider details
- NPI number
- 1588619159
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- M D PH D
- Sex
- Male
- Sole proprietor
- No
- License
- A91764 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
227 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) |
|---|---|---|
| Injection of Substance Into Lower Spine Canal Using Imaging Guidance62323 | 44 | $113 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 43 | $51 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 39 | $51 |
| Injection of Anesthetic And/Or Steroid Drug Into Sacral Spine Nerve Root Using Imaging Guidance, Single Level64483 | 36 | $143 |
| Nerve Conduction, 3-4 Studies95908 | 19 | $76 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 27 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-23
- Last updated
- 2012-01-10
Frequently asked questions
- What is Masato Nagao's NPI number?
- Masato Nagao's National Provider Identifier (NPI) is 1588619159, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Masato Nagao's specialty?
- Masato Nagao is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is Masato Nagao located?
- Masato Nagao's practice location on file with NPPES is 1001 Potrero Avenue, San Francisco, CA 94110-3518.
- What is Masato Nagao's phone number?
- The practice phone number listed in the NPPES registry for Masato Nagao is (415) 206-8811.
- Does Masato Nagao accept Medicare?
- Masato Nagao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Masato Nagao's NPI active?
- Yes — Masato Nagao's NPI (1588619159) is active in the NPPES registry as of the last update on 2012-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.