Doctor profile · Federal record

Dr. Cyrena Simons, MD PHD

Hospice and Palliative Medicine (Internal Medicine) Physician (CMS: Internal Medicine) · Internal Medicine Physician · Stanford, CA

  • NPI 1538347927
  • Accepts Medicare
  • MIPS 75.5 / 100 · 2023
  • 21 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000
Additional location
1804 Embarcadero RD, Ste 100
Palo Alto, CA 94303

Credentials & registration

NPPES · NUCC
NPI registered
February 2008 — 18 yrs on file
Profile last updated
April 16, 2024
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207RH0002X — NUCC code
State license (1)
California #A97710

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1538347927. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
147
Distinct HCPCS
6
Medicare allowed
$17,741
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 42 29 $137
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 28 28 $149
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 25 15 $55
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 20 19 $94
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 17 14 $91
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 15 15 $200

In context: peer comparison

Among 5 peers in this city , average services per provider: 32. This provider delivers 4.6× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Cyrena Simons's medical specialty?
Dr. Cyrena Simons practices Hospice and Palliative Medicine (Internal Medicine) Physician in Stanford, CA.
Where does Dr. Cyrena Simons practice?
Dr. Cyrena Simons practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Cyrena Simons's NPI?
Dr. Cyrena Simons's National Provider Identifier (NPI) is 1538347927, issued by NPPES.
Does Dr. Cyrena Simons accept Medicare assignment?
Yes. Dr. Cyrena Simons accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Cyrena Simons commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.