Doctor profile · Federal record

Dr. Yao Yao Pollock, MD

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Geriatric Medicine (Internal Medicine) Physician · Santa Rosa, CA

  • NPI 1154692549
  • Accepts Medicare
  • 13 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
3555 Round Barn Cir
Santa Rosa, CA 954031757
(707) 528-1050
fax (707) 525-3874
Additional location
301 Mason Lord Drive
Baltimore, MD 21224
(410) 550-0530

Credentials & registration

NPPES · NUCC
NPI registered
January 2012 — 14 yrs on file
Profile last updated
November 9, 2021
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
California #A147607

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1154692549. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,198
Distinct HCPCS
8
Medicare allowed
$194,644
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 660 167 $194
99214 Established patient office or other outpatient visit, 30-39 minutes 162 82 $139
G2212 Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or 119 82 $34
99443 Telephone medical discussion with physician, 21-30 minutes 92 52 $138
99205 New patient office or other outpatient visit, 60-74 minutes 73 73 $236
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 54 27 $124
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 19 19 $181
99421 Online digital evaluation and management service for an established patient for up to 7 days, total time 5-10 minutes 19 18 $16

In context: peer comparison

Among 3 peers in Santa Rosa Hematology & Oncology Physician, average services per provider: 183. This provider delivers 6.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$239
Transactions
9
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Daiichi Sankyo INC. 4 $108.34
Genentech USA, INC. 2 $40.95
Pfizer INC. 1 $34.31
Janssen Biotech, INC. 1 $27.85
Abbvie INC. 1 $27.24

By nature of payment

Food and Beverage
$239

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
563
Patients
161
Total drug cost
$799,824
Drug Type Claims Patients Total cost
Eliquis (Apixaban) Brand 79 19 $63,708
Prednisone Generic 78 20 $831
Abiraterone Acetate Generic 72 11 $357,276
Letrozole Generic 45 17 $3,542
Dexamethasone Generic 37 20 $563
Prochlorperazine Maleate Generic 34 26 $461
Acyclovir Generic 30 0 $428
Potassium Chloride Generic 29 14 $437
Ondansetron Hcl Generic 27 18 $392
Lynparza (Olaparib) Brand 25 0 $319,150

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Yao Yao Pollock's medical specialty?
Dr. Yao Yao Pollock practices Hematology & Oncology Physician in Santa Rosa, CA.
Where does Dr. Yao Yao Pollock practice?
Dr. Yao Yao Pollock practices at 3555 Round Barn Cir, Santa Rosa, CA 954031757. Office phone: 7075281050.
What is Dr. Yao Yao Pollock's NPI?
Dr. Yao Yao Pollock's National Provider Identifier (NPI) is 1154692549, issued by NPPES.
Does Dr. Yao Yao Pollock accept Medicare assignment?
Yes. Dr. Yao Yao Pollock accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Yao Yao Pollock commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (HCPCS G2212). Source: CMS Medicare Physician & Other Practitioners file.