Grayden Cook
NPI 1043891658 · Urology Physician · Boston, MA
Enrolled with Medicare as Order and Referring Only - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grayden Cook is a Urology Physician provider in Boston, MA (NPI 1043891658).
Provider details
- NPI number
- 1043891658
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
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
83% 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 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trospium Chloride | 58 | 55 |
| Tamsulosin Hcl | 52 | 52 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 42 | 41 |
| Oxycodone Hcl | 26 | 26 |
| Diclofenac Sodium | 18 | 18 |
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
- 2021-04-15
- Last updated
- 2022-08-04
- Certified
- 2022-08-04
Frequently asked questions
- What is Grayden Cook's NPI number?
- Grayden Cook's National Provider Identifier (NPI) is 1043891658, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grayden Cook's specialty?
- Grayden Cook is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Grayden Cook located?
- Grayden Cook's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.
- What is Grayden Cook's phone number?
- The practice phone number listed in the NPPES registry for Grayden Cook is (617) 732-5500.
- Does Grayden Cook accept Medicare?
- Grayden Cook is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grayden Cook's NPI active?
- Yes — Grayden Cook's NPI (1043891658) is active in the NPPES registry as of the last update on 2022-08-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.