Doctor profile · Federal record

Dr. Andrew Merriman, M.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · Santa Rosa, CA

  • NPI 1467846444
  • Accepts Medicare
  • 11 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
1165 Montgomery Dr
Santa Rosa, CA 954054801
(707) 525-5300
Additional location
1005 van Ness Ave
San Francisco, CA 941096913
(415) 233-9901
fax (833) 464-0177
Additional location
505 Parnassus Ave
San Francisco, CA 941432204
(415) 353-1529
Mailing address
1005 van Ness Ave
San Francisco, CA 941096913

Credentials & registration

NPPES · NUCC
NPI registered
March 2015 — 11 yrs on file
Profile last updated
July 5, 2025
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
California #A147107

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1467846444. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
647
Distinct HCPCS
5
Medicare allowed
$93,179
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 279 275 $181
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 121 119 $8
99291 Critical care, first 30-74 minutes 118 118 $222
99284 Emergency department visit with moderate level of medical decision making 114 114 $126
99283 Emergency department visit with low level of medical decision making 15 15 $75

In context: peer comparison

Among 15 peers in Santa Rosa Emergency Medicine Physician, average services per provider: 78. This provider delivers 8.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$182
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
ViiV Healthcare Company 1 $122.39
Cleerly, INC. 1 $59.65

By nature of payment

Food and Beverage
$182

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
65
Patients
65
Total drug cost
$622
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 22 22 $55
Doxycycline Hyclate Generic 17 17 $258
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 15 15 $123
Ondansetron Odt (Ondansetron) Brand 11 11 $186

Frequently asked questions

Auto-generated from federal data
What is Dr. Andrew Merriman's medical specialty?
Dr. Andrew Merriman practices Emergency Medicine Physician in Santa Rosa, CA.
Where does Dr. Andrew Merriman practice?
Dr. Andrew Merriman practices at 1165 Montgomery Dr, Santa Rosa, CA 954054801. Office phone: 7075255300.
What is Dr. Andrew Merriman's NPI?
Dr. Andrew Merriman's National Provider Identifier (NPI) is 1467846444, issued by NPPES.
Does Dr. Andrew Merriman accept Medicare assignment?
Yes. Dr. Andrew Merriman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Andrew Merriman commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.