Michelle Di Fiore, M.D.
NPI 1790171072 · Rheumatology Physician · Santa Cruz, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michelle Di Fiore, M.D. is a Rheumatology Physician provider in Santa Cruz, CA (NPI 1790171072).
Provider details
- NPI number
- 1790171072
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A149040 (CA)
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
11 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
1,353 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) |
|---|---|---|
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 468 | $47 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 315 | $142 |
| 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 | 178 | $18 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 115 | $101 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 81 | $243 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 287 | 88 |
| Hydroxychloroquine Sulfate | 142 | 58 |
| Methotrexate Sodiumbrand: Methotrexate | 131 | 39 |
| Meloxicam | 92 | 33 |
| Colchicine | 76 | 30 |
| Leflunomide | 52 | 17 |
| Alendronate Sodium | 50 | 17 |
| Celecoxib |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$566 across 23 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
- 2015-04-13
- Last updated
- 2022-07-18
- Certified
- 2022-07-18
Frequently asked questions
- What is Michelle Di Fiore's NPI number?
- Michelle Di Fiore's National Provider Identifier (NPI) is 1790171072, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michelle Di Fiore's specialty?
- Michelle Di Fiore is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Michelle Di Fiore located?
- Michelle Di Fiore's practice location on file with NPPES is 1595 Soquel Dr Ste 411, Santa Cruz, CA 95065-1724.
- What is Michelle Di Fiore's phone number?
- The practice phone number listed in the NPPES registry for Michelle Di Fiore is (831) 475-8834.
- Does Michelle Di Fiore accept Medicare?
- Michelle Di Fiore is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michelle Di Fiore's NPI active?
- Yes — Michelle Di Fiore's NPI (1790171072) is active in the NPPES registry as of the last update on 2022-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.