Grisselle Perez Santiago, M.D.
NPI 1275541534 · Pain Medicine (Physical Medicine & Rehabilitation) Physician · Bayamon, PR
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grisselle Perez Santiago, M.D. is a Pain Medicine (Physical Medicine & Rehabilitation) Physician provider in Bayamon, PR (NPI 1275541534).
Provider details
- NPI number
- 1275541534
- Entity type
- Individual
- Primary specialty
- Pain Medicine (Physical Medicine & Rehabilitation) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 12836 (PR)
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
19 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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Nabumetone | 54 | 45 |
| Tizanidine Hcl | 47 | 39 |
| Diclofenac Potassium | 45 | 39 |
| Gabapentin | 29 | 15 |
| Methylprednisolone | 27 | 17 |
| Tramadol Hcl/Acetaminophenbrand: Tramadol Hcl-Acetaminophen | 23 | 22 |
| Tramadol Hcl | 11 | — |
These counts cover prescriptions paid through Medicare Part D in 2024 — they 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 , 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
- 2006-08-03
- Last updated
- 2023-11-14
- Certified
- 2023-11-14
Frequently asked questions
- What is Grisselle Perez Santiago's NPI number?
- Grisselle Perez Santiago's National Provider Identifier (NPI) is 1275541534, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grisselle Perez Santiago's specialty?
- Grisselle Perez Santiago is listed in the NPPES registry with a primary specialty of Pain Medicine (Physical Medicine & Rehabilitation) Physician (Allopathic & Osteopathic Physicians).
- Where is Grisselle Perez Santiago located?
- Grisselle Perez Santiago's practice location on file with NPPES is J16 Calle 2 Ste 110, Bayamon, PR 00959-5045.
- What is Grisselle Perez Santiago's phone number?
- The practice phone number listed in the NPPES registry for Grisselle Perez Santiago is (787) 775-2685.
- Does Grisselle Perez Santiago accept Medicare?
- Grisselle Perez Santiago is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grisselle Perez Santiago's NPI active?
- Yes — Grisselle Perez Santiago's NPI (1275541534) is active in the NPPES registry as of the last update on 2023-11-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.