Fabian Mendoza Ballesteros, M.D
NPI 1164689840 · Rheumatology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Fabian Mendoza Ballesteros, M.D is a Rheumatology Physician provider in Philadelphia, PA (NPI 1164689840).
Provider details
- NPI number
- 1164689840
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- 003041 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
764 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 242 | $145 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 159 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 117 | $158 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 86 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 213 | 74 |
| Methotrexate Sodiumbrand: Methotrexate | 167 | 46 |
| Mycophenolate Mofetil | 166 | 48 |
| Hydroxychloroquine Sulfate | 77 | 29 |
| Alendronate Sodium | 71 | 28 |
| Amlodipine Besylate | 51 | 14 |
| Adalimumabbrand: Humira Pen |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,464 across 9 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-05-20
- Last updated
- 2014-11-20
Frequently asked questions
- What is Fabian Mendoza Ballesteros's NPI number?
- Fabian Mendoza Ballesteros's National Provider Identifier (NPI) is 1164689840, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Fabian Mendoza Ballesteros's specialty?
- Fabian Mendoza Ballesteros is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Fabian Mendoza Ballesteros located?
- Fabian Mendoza Ballesteros's practice location on file with NPPES is 211 S 9th St, Philadelphia, PA 19107-6810.
- What is Fabian Mendoza Ballesteros's phone number?
- The practice phone number listed in the NPPES registry for Fabian Mendoza Ballesteros is (215) 955-8430.
- Does Fabian Mendoza Ballesteros accept Medicare?
- Fabian Mendoza Ballesteros is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Fabian Mendoza Ballesteros's NPI active?
- Yes — Fabian Mendoza Ballesteros's NPI (1164689840) is active in the NPPES registry as of the last update on 2014-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.