Doctor profile · Federal record

Dr. Diana Suh, MD

Internal Medicine Physician (CMS: Hospitalist) · San Rafael, CA

  • NPI 1417031485
  • Accepts Medicare
  • 25 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
99 Montecillo RD
San Rafael, CA 949033308
(415) 444-2000
Mailing address
1800 Harrison St Fl 7
Oakland, CA 946123466

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
November 30, 2021
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A80013
Medicaid
CA #00A800130

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1417031485. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
52
Distinct HCPCS
3
Medicare allowed
$5,277
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 23 13 $83
99234 Initial hospital care with same-day admission and discharge with straightforward or low level of medical decision making, per day, if using time, at least 45 minutes 18 18 $103
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 11 11 $137

In context: peer comparison

Among 4 peers in San Rafael Internal Medicine Physician, average services per provider: 50. This provider delivers 1.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
101
Patients
82
Total drug cost
$1,339
Drug Type Claims Patients Total cost
Cefpodoxime Proxetil Generic 25 25 $585
Furosemide Generic 21 16 $231
Amlodipine Besylate Generic 16 14 $148
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 14 14 $126
Prednisone Generic 13 13 $138
Metoprolol Tartrate Generic 12 0 $112

Frequently asked questions

Auto-generated from federal data
What is Dr. Diana Suh's medical specialty?
Dr. Diana Suh practices Internal Medicine Physician in San Rafael, CA.
Where does Dr. Diana Suh practice?
Dr. Diana Suh practices at 99 Montecillo RD, San Rafael, CA 949033308. Office phone: 4154442000.
What is Dr. Diana Suh's NPI?
Dr. Diana Suh's National Provider Identifier (NPI) is 1417031485, issued by NPPES.
Does Dr. Diana Suh accept Medicare assignment?
Yes. Dr. Diana Suh accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diana Suh commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with same-day admission and discharge with straightforward or low level of medical decision making (HCPCS 99234); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.