Ana Maria Castrillon, MD
NPI 1932174570 · Internal Medicine Physician · Holyoke, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ana Maria Castrillon, MD is a Internal Medicine Physician provider in Holyoke, MA (NPI 1932174570).
Provider details
- NPI number
- 1932174570
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 213156 (MA)
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
86 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) |
|---|---|---|
| Blood Glucose (sugar) Level82947 | 52 | $4 |
| Hemoglobin A1c Level83036 | 34 | $10 |
Typical Medicare-allowed amounts for these services range $4–$10 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 112 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 310 | 81 |
| Lisinopril | 211 | 60 |
| Amlodipine Besylate | 197 | 43 |
| Gabapentin | 186 | 43 |
| Fluticasone Propionate | 135 | 64 |
| Metformin Hcl | 131 | 35 |
| Omeprazole | 127 |
Practice location
Mailing address
Additional practice locations (1)
- 175 Carew St Ste 200Springfield, MA 01104-2391Phone: (413) 734-8254Fax: (413) 747-5870
Registry dates
- Enumerated
- 2006-02-17
- Last updated
- 2025-11-12
- Certified
- 2025-11-12
Frequently asked questions
- What is Ana Maria Castrillon's NPI number?
- Ana Maria Castrillon's National Provider Identifier (NPI) is 1932174570, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ana Maria Castrillon's specialty?
- Ana Maria Castrillon is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ana Maria Castrillon located?
- Ana Maria Castrillon's practice location on file with NPPES is 230 Maple St Ste 1, Holyoke, MA 01040-5140.
- What is Ana Maria Castrillon's phone number?
- The practice phone number listed in the NPPES registry for Ana Maria Castrillon is (413) 420-2200.
- Does Ana Maria Castrillon accept Medicare?
- Ana Maria Castrillon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ana Maria Castrillon's NPI active?
- Yes — Ana Maria Castrillon's NPI (1932174570) is active in the NPPES registry as of the last update on 2025-11-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.