Doctor profile · Federal record

Dr. Patricia Sitnitsky, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Obesity Medicine (Internal Medicine) Physician · Los Altos, CA

  • NPI 1790896231
  • Accepts Medicare
  • 24 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
827 Altos Oaks Dr Ste 4
Los Altos, CA 940245490
(408) 495-5770
fax (650) 912-1129
Additional location
525 South Dr Ste 211
Mountain View, CA 940404211

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
May 29, 2025
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
California #A88027 · California #89984281

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1790896231. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
407
Distinct HCPCS
9
Medicare allowed
$45,488
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 141 75 $147
99213 Established patient office or other outpatient visit, 20-29 minutes 74 46 $92
99204 New patient office or other outpatient visit, 45-59 minutes 45 45 $198
99497 Advance care planning, first 30 minutes 42 35 $98
99203 New patient office or other outpatient visit, 30-44 minutes 30 30 $120
96127 Assessment of emotional or behavioral problems 24 19 $6
96372 Injection of drug or substance under skin or into muscle 20 16 $18
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 19 18 $18
G0008 Administration of influenza virus vaccine 12 12 $36

In context: peer comparison

Among 8 peers in Los Altos Internal Medicine Physician, average services per provider: 59. This provider delivers 6.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$3,214
Transactions
82
Manufacturers
13
Payer (manufacturer) Industry Txns Amount
GlaxoSmithKline, LLC. 4 $1,050.00
Abbvie INC. 18 $513.68
ViiV Healthcare Company 14 $282.60
Novo Nordisk INC 11 $277.16
Lilly USA, LLC 7 $271.66
Kyowa Kirin, INC. 3 $173.00
Amgen INC. 4 $159.77
Pfizer INC. 10 $146.40
Gilead Sciences, INC. 7 $139.49
Lundbeck LLC 1 $124.99
Regeneron Healthcare Solutions, INC. 1 $26.20
iRhythm Technologies, INC. 1 $26.09
Novartis Pharmaceuticals Corporation 1 $22.56

By nature of payment

Food and Beverage
$2,164
Consulting Fee
$1,050

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
393
Patients
217
Total drug cost
$55,337
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 50 29 $1,098
Abrysvo (Rsv Vacc, Pref A and Pref B/Pf) Brand 35 35 $11,321
Metformin Hcl Generic 34 21 $624
Amlodipine Besylate Generic 33 20 $459
Lisinopril Generic 32 13 $409
Rosuvastatin Calcium Generic 29 18 $675
Shingrix (Varicella-Zoster Ge/As01b/Pf) Brand 27 24 $5,452
Ozempic (Semaglutide) Brand 26 14 $32,182
Gabapentin Generic 24 15 $558
Levothyroxine Sodium Generic 24 15 $540

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Patricia Sitnitsky's medical specialty?
Dr. Patricia Sitnitsky practices Internal Medicine Physician in Los Altos, CA.
Where does Dr. Patricia Sitnitsky practice?
Dr. Patricia Sitnitsky practices at 827 Altos Oaks Dr Ste 4, Los Altos, CA 940245490. Office phone: 4084955770.
What is Dr. Patricia Sitnitsky's NPI?
Dr. Patricia Sitnitsky's National Provider Identifier (NPI) is 1790896231, issued by NPPES.
Does Dr. Patricia Sitnitsky accept Medicare assignment?
Yes. Dr. Patricia Sitnitsky accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Patricia Sitnitsky commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.