Doctor profile · Federal record

Dr. Mark Klein, DO

Family Medicine Physician (CMS: Family Practice) · Gainesville, TX

  • NPI 1982686390
  • Accepts Medicare
  • 29 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1625 N Grand Ave
Gainesville, TX 76240
(940) 665-9863
fax (940) 668-9863
Mailing address
Po Box 1239
Gainesville, TX 762411239

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
November 21, 2007
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Texas #K5586
Medicaid
TX #112013101

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1982686390. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
781
Distinct HCPCS
9
Medicare allowed
$82,432
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 324 180 $86
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 181 181 $124
99214 Established patient office or other outpatient visit, 30-39 minutes 168 110 $122
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit 21 21 $158
99406 Smoking and tobacco use intensive counseling, 4-10 minutes 19 18 $14
87428 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza 18 17 $36
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment 18 18 $158
99496 Transitional care management services for problem of high complexity 17 16 $265
81002 Urinalysis, manual test 15 12 $3

In context: peer comparison

Among 3 peers in this city , average services per provider: 84. This provider delivers 9.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$790
Transactions
42
Manufacturers
12
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals LP 9 $257.26
Phathom Pharmaceuticals, Inc. 13 $150.54
ABBVIE INC. 5 $101.68
Boehringer Ingelheim Pharmaceuticals, Inc. 3 $67.52
Amgen Inc. 3 $46.99
Noven Therapeutics, LLC 2 $42.36
Novo Nordisk Inc 2 $31.15
Exact Sciences Corporation 1 $19.35
Optos, Inc. 1 $19.07
Corcept Therapeutics 1 $18.87
GlaxoSmithKline, LLC. 1 $18.21
Lilly USA, LLC 1 $17.22

By nature of payment

Food and Beverage
$771
Entertainment
$19

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
4,192
Patients
1,006
Total drug cost
$56,236
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 614 143 $6,927
Levothyroxine Sodium Generic 450 97 $4,939
Lisinopril Generic 408 101 $3,099
Rosuvastatin Calcium Generic 362 93 $8,219
Gabapentin Generic 293 70 $6,524
Losartan Potassium Generic 281 72 $4,264
Amlodipine Besylate Generic 248 58 $1,655
Metformin Hcl Generic 221 54 $1,920
Pravastatin Sodium Generic 203 49 $3,083
Metformin Hcl Er (Metformin Hcl) Brand 196 42 $2,393

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Klein's medical specialty?
Dr. Mark Klein practices Family Medicine Physician in Gainesville, TX.
Where does Dr. Mark Klein practice?
Dr. Mark Klein practices at 1625 N Grand Ave, Gainesville, TX 76240. Office phone: 9406659863.
What is Dr. Mark Klein's NPI?
Dr. Mark Klein's National Provider Identifier (NPI) is 1982686390, issued by NPPES.
Does Dr. Mark Klein accept Medicare assignment?
Yes. Dr. Mark Klein accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Klein commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.