Maria Ballester, MD
NPI 1164649554 · Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician · Santurce, PR
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Ballester, MD is a Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician provider in Santurce, PR (NPI 1164649554).
Provider details
- NPI number
- 1164649554
- Entity type
- Individual
- Primary specialty
- Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 9839 (PR)
Specialties & taxonomies
- Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) PhysicianPrimary2081H0002XLicense 9839 (PR)
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
68 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 46 | $89 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 22 | $109 |
Typical Medicare-allowed amounts for these services range $89–$109 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is Maria Ballester's NPI number?
- Maria Ballester's National Provider Identifier (NPI) is 1164649554, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Ballester's specialty?
- Maria Ballester is listed in the NPPES registry with a primary specialty of Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Ballester located?
- Maria Ballester's practice location on file with NPPES is 1449 Calle Americo Salas, Santurce, PR 00909-2100.
- What is Maria Ballester's phone number?
- The practice phone number listed in the NPPES registry for Maria Ballester is (787) 725-2222.
- Does Maria Ballester accept Medicare?
- Maria Ballester is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Ballester's NPI active?
- Yes — Maria Ballester's NPI (1164649554) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.