Patricia Sitnitsky, M.D.
NPI 1790896231 · Internal Medicine Physician · Los Altos, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Patricia Sitnitsky, M.D. is a Internal Medicine Physician provider in Los Altos, CA (NPI 1790896231).
Provider details
- NPI number
- 1790896231
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 89984281 (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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,115 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 | 300 | $153 |
| Assessment of Emotional Or Behavioral Problems96127 | 241 | $6 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 79 | $111 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 76 | $197 |
| Advance Care Planning, First 30 Minutes99497 | 72 | $96 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, Each Additional 20 Minutes99458 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 53 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 150 | 62 |
| Atorvastatin Calcium | 101 | 39 |
| Amlodipine Besylate | 94 | 43 |
| Lisinopril | 82 | 29 |
| Semaglutidebrand: Ozempic | 78 | 23 |
| Levothyroxine Sodium | 64 | 28 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,214 across 82 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
Additional practice locations (1)
- 525 South Dr Ste 211Mountain View, CA 94040-4211Phone: (408) 495-5770Fax: (650) 912-1129
Registry dates
- Enumerated
- 2006-08-31
- Last updated
- 2025-05-29
- Certified
- 2025-05-29
Frequently asked questions
- What is Patricia Sitnitsky's NPI number?
- Patricia Sitnitsky's National Provider Identifier (NPI) is 1790896231, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Patricia Sitnitsky's specialty?
- Patricia Sitnitsky is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Patricia Sitnitsky located?
- Patricia Sitnitsky's practice location on file with NPPES is 827 Altos Oaks Dr Ste 4, Los Altos, CA 94024-5490.
- What is Patricia Sitnitsky's phone number?
- The practice phone number listed in the NPPES registry for Patricia Sitnitsky is (408) 495-5770.
- Does Patricia Sitnitsky accept Medicare?
- Patricia Sitnitsky is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Patricia Sitnitsky's NPI active?
- Yes — Patricia Sitnitsky's NPI (1790896231) is active in the NPPES registry as of the last update on 2025-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.