Flavia Castelino, M.D.
NPI 1962611301 · Rheumatology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Flavia Castelino, M.D. is a Rheumatology Physician provider in Boston, MA (NPI 1962611301).
Provider details
- NPI number
- 1962611301
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 231346 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
643 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 191 | $101 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 146 | $152 |
| 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 | 101 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 100 | $139 |
| 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 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 203 | 67 |
| Prednisone | 142 | 57 |
| Adalimumabbrand: Humira(cf) Pen | 124 | 16 |
| Mycophenolate Mofetil | 86 | 22 |
| Hydroxychloroquine Sulfate | 65 | 26 |
| Allopurinol | 52 | 18 |
| Etanerceptbrand: Enbrel Sureclick |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$14,620 across 7 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
- 2007-05-22
- Last updated
- 2011-02-18
Frequently asked questions
- What is Flavia Castelino's NPI number?
- Flavia Castelino's National Provider Identifier (NPI) is 1962611301, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Flavia Castelino's specialty?
- Flavia Castelino is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Flavia Castelino located?
- Flavia Castelino's practice location on file with NPPES is 55 Fruit St Yawkey 2c, Boston, MA 02114.
- What is Flavia Castelino's phone number?
- The practice phone number listed in the NPPES registry for Flavia Castelino is (617) 726-7938.
- Does Flavia Castelino accept Medicare?
- Flavia Castelino is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Flavia Castelino's NPI active?
- Yes — Flavia Castelino's NPI (1962611301) is active in the NPPES registry as of the last update on 2011-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.