Isabel Castro, D.O.
NPI 1164699583 · Hospice and Palliative Medicine (Internal Medicine) Physician · Worcester, MA
Enrolled with Medicare as Practitioner - Hospice/Palliative Care · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isabel Castro, D.O. is a Hospice and Palliative Medicine (Internal Medicine) Physician provider in Worcester, MA (NPI 1164699583).
Provider details
- NPI number
- 1164699583
- Entity type
- Individual
- Primary specialty
- Hospice and Palliative Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 52427 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 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
224 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 79 | $117 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 51 | $171 |
| Advance Care Planning, First 30 Minutes99497 | 41 | $74 |
| Advance Care Planning, Each Additional 30 Minutes99498 | 22 | $70 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 18 | $78 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 13 |
Practice location
Mailing address
Additional practice locations (1)
- 119 Belmont StWorcester, MA 01605-2903Phone: (508) 334-8630Fax: (774) 441-6710
Registry dates
- Enumerated
- 2008-05-14
- Last updated
- 2020-10-30
- Certified
- 2020-10-30
Frequently asked questions
- What is Isabel Castro's NPI number?
- Isabel Castro's National Provider Identifier (NPI) is 1164699583, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isabel Castro's specialty?
- Isabel Castro is listed in the NPPES registry with a primary specialty of Hospice and Palliative Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Isabel Castro located?
- Isabel Castro's practice location on file with NPPES is 55 Lake Ave N, Worcester, MA 01655.
- What is Isabel Castro's phone number?
- The practice phone number listed in the NPPES registry for Isabel Castro is (508) 334-8630.
- Does Isabel Castro accept Medicare?
- Isabel Castro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isabel Castro's NPI active?
- Yes — Isabel Castro's NPI (1164699583) is active in the NPPES registry as of the last update on 2020-10-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.