Nastassia Sylvestre, MD
NPI 1649658659 · Internal Medicine Physician · Santa Barbara, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nastassia Sylvestre, MD is a Internal Medicine Physician provider in Santa Barbara, CA (NPI 1649658659).
Provider details
- NPI number
- 1649658659
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301107039 (MI)
Specialties & taxonomies
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
11 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
78 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 | 40 | $95 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 38 | $135 |
Typical Medicare-allowed amounts for these services range $95–$135 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 76 | 26 |
| Amlodipine Besylate | 49 | 16 |
| Losartan Potassium | 41 | 16 |
| Hydrochlorothiazide | 33 | 13 |
| Simvastatin | 26 | — |
| Levothyroxine Sodium | 25 | — |
| Lisinopril | 22 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-05-11
- Last updated
- 2024-12-20
- Certified
- 2024-12-20
Frequently asked questions
- What is Nastassia Sylvestre's NPI number?
- Nastassia Sylvestre's National Provider Identifier (NPI) is 1649658659, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nastassia Sylvestre's specialty?
- Nastassia Sylvestre is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nastassia Sylvestre located?
- Nastassia Sylvestre's practice location on file with NPPES is 400 W Pueblo St, Santa Barbara, CA 93105-4353.
- What is Nastassia Sylvestre's phone number?
- The practice phone number listed in the NPPES registry for Nastassia Sylvestre is (805) 682-7111.
- Does Nastassia Sylvestre accept Medicare?
- Nastassia Sylvestre is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nastassia Sylvestre's NPI active?
- Yes — Nastassia Sylvestre's NPI (1649658659) is active in the NPPES registry as of the last update on 2024-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.