Doctor profile · Federal record

Dr. Chloe Atreya, MD, PHD

Medical Oncology Physician (CMS: Medical Oncology) · San Francisco, CA

  • NPI 1326058777
  • Accepts Medicare
  • MIPS 70.8 / 100 · 2023
  • 21 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1600 Divisadero St, 4Th Floor, Box 1705
San Francisco, CA 941153010
(415) 353-9888
fax (415) 353-9931

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
November 30, 2012
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207RX0202X — NUCC code
State license (1)
California #A104445

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1326058777. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
225
Distinct HCPCS
3
Medicare allowed
$30,640
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 158 62 $161
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 50 15 $35
99205 New patient office or other outpatient visit, 60-74 minutes 17 17 $203

In context: peer comparison

Among 13 peers in this city , average services per provider: 70. This provider delivers 3.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,899
Transactions
3
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
F. Hoffmann-La Roche AG 1 $2,625.00
ARRAY BIOPHARMA INC 1 $138.67
AstraZeneca Pharmaceuticals LP 1 $135.00

By nature of payment

Consulting Fee
$2,625
Food and Beverage
$274

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
111
Patients
0
Total drug cost
$477,321
Drug Type Claims Patients Total cost
Imatinib Mesylate Generic 32 0 $8,170
Sunitinib Malate Generic 23 0 $236,679
Lonsurf (Trifluridine/Tipiracil Hcl) Brand 20 0 $231,372
Prochlorperazine Maleate Generic 14 0 $184
Doxycycline Hyclate Generic 11 0 $702
Ondansetron Hcl Generic 11 0 $214

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Chloe Atreya's medical specialty?
Dr. Chloe Atreya practices Medical Oncology Physician in San Francisco, CA.
Where does Dr. Chloe Atreya practice?
Dr. Chloe Atreya practices at 1600 Divisadero St, San Francisco, CA 941153010. Office phone: 4153539888.
What is Dr. Chloe Atreya's NPI?
Dr. Chloe Atreya's National Provider Identifier (NPI) is 1326058777, issued by NPPES.
Does Dr. Chloe Atreya accept Medicare assignment?
Yes. Dr. Chloe Atreya accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Chloe Atreya commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); 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); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.