Grace Alfonsi, MD
NPI 1174533616 · Family Medicine Physician · Denver, CO
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Alfonsi, MD is a Family Medicine Physician provider in Denver, CO (NPI 1174533616).
Provider details
- NPI number
- 1174533616
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 35812 (CO)
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 · 54 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 131 | 41 |
| Levothyroxine Sodium | 84 | 23 |
| Oxycodone Hcl | 73 | — |
| Omeprazole | 73 | 28 |
| Lisinopril | 72 | 25 |
| Amlodipine Besylate | 63 | 18 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-08
- Last updated
- 2021-03-18
- Certified
- 2021-03-18
Frequently asked questions
- What is Grace Alfonsi's NPI number?
- Grace Alfonsi's National Provider Identifier (NPI) is 1174533616, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Alfonsi's specialty?
- Grace Alfonsi is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Grace Alfonsi located?
- Grace Alfonsi's practice location on file with NPPES is 777 Bannock St, Denver, CO 80204-4507.
- What is Grace Alfonsi's phone number?
- The practice phone number listed in the NPPES registry for Grace Alfonsi is (303) 436-6000.
- Does Grace Alfonsi accept Medicare?
- Grace Alfonsi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grace Alfonsi's NPI active?
- Yes — Grace Alfonsi's NPI (1174533616) is active in the NPPES registry as of the last update on 2021-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.