Doctor profile · Federal record

Dr. J Karst, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Montgomery, AL

  • NPI 1194759662
  • Accepts Medicare
  • MIPS 89.7 / 100 · 2023
  • 40 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4485 Atlanta Hwy
Montgomery, AL 361093102
(334) 272-4302
fax (334) 272-0195

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
March 8, 2024
Year of graduation
1986 — 40 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Alabama #13546
Medicaid
AL #529001630

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1194759662. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
4,273
Distinct HCPCS
10
Medicare allowed
$218,124
HCPCS Description Services Patients Avg allowed
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 835 100 $57
99212 Established patient office or other outpatient visit, 10-19 minutes 684 359 $52
99213 Established patient office or other outpatient visit, 20-29 minutes 495 307 $83
36415 Insertion of needle into vein for collection of blood sample 378 290 $8
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 268 185 $7
83037 Hemoglobin a1c level, by device for home use 257 115 $9
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 239 239 $121
87804 Detection test by immunoassay with direct visual observation for influenza virus 221 92 $16
G0008 Administration of influenza virus vaccine 121 120 $29
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 119 118 $75

In context: peer comparison

Among 33 peers in this city , average services per provider: 195. This provider delivers 22× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$14
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
PFIZER INC. 1 $14.31

By nature of payment

Food and Beverage
$14

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
4,990
Patients
1,233
Total drug cost
$81,027
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 697 184 $13,717
Amlodipine Besylate Generic 614 159 $5,713
Alprazolam Generic 440 72 $1,628
Levothyroxine Sodium Generic 415 107 $9,308
Omeprazole Generic 361 88 $5,899
Pantoprazole Sodium Generic 350 86 $5,749
Losartan Potassium Generic 311 88 $5,953
Simvastatin Generic 292 80 $3,448
Lisinopril Generic 255 69 $2,300
Rosuvastatin Calcium Generic 232 53 $11,179

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. J Karst's medical specialty?
Dr. J Karst practices Internal Medicine Physician in Montgomery, AL.
Where does Dr. J Karst practice?
Dr. J Karst practices at 4485 Atlanta Hwy, Montgomery, AL 361093102. Office phone: 3342724302.
What is Dr. J Karst's NPI?
Dr. J Karst's National Provider Identifier (NPI) is 1194759662, issued by NPPES.
Does Dr. J Karst accept Medicare assignment?
Yes. Dr. J Karst accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. J Karst commonly perform?
Top Medicare-reported procedures in 2023: Chronic care management services (HCPCS 99490); Established patient office or other outpatient visit (HCPCS 99212); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.