Doctor profile · Federal record

Dr. Thomas Merriman, MD

Interventional Pain Medicine Physician (CMS: Anesthesiology) · Pain Medicine Physician · Amarillo, TX

  • NPI 1134179054
  • Accepts Medicare
  • MIPS 68.7 / 100 · 2023
  • 38 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1901 Medi Park Dr Ste 2
Amarillo, TX 791062105
(806) 350-7918
Mailing address
101 W Louis Henna Blvd Ste 300
Austin, TX 787281203

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
August 10, 2023
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
208VP0014X — NUCC code
State license (1)
Texas #H5788
Medicaid
TX #104330909

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134179054. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
6,511
Distinct HCPCS
10
Medicare allowed
$773,981
HCPCS Description Services Patients Avg allowed
80307 Testing for presence of drug, by chemistry analyzers 1,923 632 $60
G0482 Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms 1,441 444 $193
99214 Established patient office or other outpatient visit, 30-39 minutes 883 422 $120
G0483 Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms 437 293 $234
96127 Assessment of emotional or behavioral problems 433 355 $4
64483 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level 195 146 $125
99204 New patient office or other outpatient visit, 45-59 minutes 142 142 $158
64493 Injection of lower or sacral spine facet joint using imaging guidance, single level 110 64 $117
64484 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level 108 87 $50
99213 Established patient office or other outpatient visit, 20-29 minutes 99 94 $86

In context: peer comparison

Among 6 peers in this city , average services per provider: 232. This provider delivers 28× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,148
Transactions
40
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Abbott Laboratories 36 $1,002.62
SPR Therapeutics, Inc 1 $62.74
ABBVIE INC. 1 $49.99
Collegium Pharmaceutical, Inc. 2 $32.93

By nature of payment

Food and Beverage
$1,148

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,168
Patients
881
Total drug cost
$116,979
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 1,612 284 $47,096
Morphine Sulfate Er (Morphine Sulfate) Brand 237 35 $9,290
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 216 45 $6,120
Gabapentin Generic 189 91 $3,138
Oxycodone Hcl Generic 144 28 $3,572
Tramadol Hcl Generic 135 74 $1,095
Acetaminophen-Codeine (Acetaminophen With Codeine) Brand 122 73 $3,152
Buprenorphine Generic 85 52 $28,444
Pregabalin Generic 82 29 $1,875
Methocarbamol Generic 68 35 $837

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Merriman's medical specialty?
Dr. Thomas Merriman practices Interventional Pain Medicine Physician in Amarillo, TX.
Where does Dr. Thomas Merriman practice?
Dr. Thomas Merriman practices at 1901 Medi Park Dr Ste 2, Amarillo, TX 791062105. Office phone: 8063507918.
What is Dr. Thomas Merriman's NPI?
Dr. Thomas Merriman's National Provider Identifier (NPI) is 1134179054, issued by NPPES.
Does Dr. Thomas Merriman accept Medicare assignment?
Yes. Dr. Thomas Merriman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Merriman commonly perform?
Top Medicare-reported procedures in 2023: Testing for presence of drug, by chemistry analyzers (HCPCS 80307); Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms (HCPCS G0482); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.