What is William Rios's NPI number?

William Rios's National Provider Identifier (NPI) is 1013928969, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Rios's specialty?

William Rios is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).

Where is William Rios located?

William Rios's practice location on file with NPPES is 32 Antonio Lopez, Toa Alta, PR 00954.

What is William Rios's phone number?

The practice phone number listed in the NPPES registry for William Rios is (787) 870-3760.

Does William Rios accept Medicare?

William Rios is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is William Rios's NPI active?

Yes — William Rios's NPI (1013928969) is active in the NPPES registry as of the last update on 2007-07-08.

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William Rios, MD

NPI 1013928969 · General Practice Physician · Toa Alta, PR

William Rios, MD is a General Practice Physician provider in Toa Alta, PR (NPI 1013928969).

Provider details

NPI number: 1013928969
Entity type: Individual
Primary specialty: General Practice PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: 15825 (PR)

Practice location

32 Antonio Lopez

Toa Alta, PR 00954

Phone: (787) 870-3760

Fax: (787) 870-2735

Street-level locationGet directions

More PR providers

Mailing address

Po Box #902

Toa Alta, PR 00954

Specialties & taxonomies

General Practice PhysicianPrimary208D00000XLicense 15825 (PR)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(91/100 index)

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.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Levothyroxine Sodiumbrand: Synthroid	24	11
Losartan Potassium	22	—
Atorvastatin Calcium	22	—
Dexamethasone	22	20
Metformin Hcl	22	—
Amlodipine Besylate	16	—
Rosuvastatin Calcium	15	—
Baclofen	13	12
Omega-3 Acid Ethyl Esters	13

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include 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.

Enumerated: 2006-08-10
Last updated: 2007-07-08

Frequently asked questions

What is William Rios's NPI number?: William Rios's National Provider Identifier (NPI) is 1013928969, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is William Rios's specialty?: William Rios is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
Where is William Rios located?: William Rios's practice location on file with NPPES is 32 Antonio Lopez, Toa Alta, PR 00954.
What is William Rios's phone number?: The practice phone number listed in the NPPES registry for William Rios is (787) 870-3760.
Does William Rios accept Medicare?: William Rios is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is William Rios's NPI active?: Yes — William Rios's NPI (1013928969) is active in the NPPES registry as of the last update on 2007-07-08.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider prescribes (Medicare Part D)