Doctor profile · Federal record

Dr. Irene Koskan, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Bay St Louis, MS

  • NPI 1831197862
  • Accepts Medicare
  • MIPS 87.9 / 100 · 2023
  • 49 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
835 Thames Ave
Bay St Louis, MS 395205005
(228) 466-4977
fax (228) 463-0827
Mailing address
Po Box 1810
Gulfport, MS 395021810

Credentials & registration

NPPES · NUCC
NPI registered
July 2005 — 21 yrs on file
Profile last updated
July 10, 2014
Year of graduation
1977 — 49 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Mississippi #09338
Medicaid
MS #00018846

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1831197862. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,969
Distinct HCPCS
10
Medicare allowed
$122,024
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 521 241 $92
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 303 62 $48
G0442 Annual alcohol misuse screening, 5 to 15 minutes 223 223 $9
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 221 221 $120
G0444 Annual depression screening, 5 to 15 minutes 218 218 $9
99439 Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 158 47 $33
99213 Established patient office or other outpatient visit, 20-29 minutes 85 77 $62
99489 Complex chronic care management services for two or more chronic conditions, each additional 60 minutes of clinical staff time directed by health care professional, per calendar month 72 20 $47
99497 Advance care planning, first 30 minutes 63 63 $71
99215 Established patient office or other outpatient visit, 40-54 minutes 37 36 $135

In context: peer comparison

Among 4 peers in Bay St Louis Internal Medicine Physician, average services per provider: 131. This provider delivers 15× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$672
Transactions
42
Manufacturers
9
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 12 $140.96
Novo Nordisk INC 5 $92.76
Sumitomo Pharma America, INC. 6 $91.35
Lilly USA, LLC 5 $88.56
Amgen INC. 4 $72.98
Abbvie INC. 3 $61.96
GlaxoSmithKline, LLC. 3 $52.53
AstraZeneca Pharmaceuticals Lp 2 $36.97
Abbott Laboratories 2 $33.44

By nature of payment

Food and Beverage
$672

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
5,013
Patients
1,169
Total drug cost
$46,555
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 612 131 $5,178
Rosuvastatin Calcium Generic 551 159 $5,527
Gabapentin Generic 452 99 $5,903
Losartan Potassium Generic 398 103 $3,399
Montelukast Sodium Generic 336 73 $2,944
Metoprolol Succinate Generic 330 85 $3,884
Amlodipine Besylate Generic 324 86 $2,136
Atorvastatin Calcium Generic 317 77 $2,591
Omeprazole Generic 288 81 $3,169
Pantoprazole Sodium Generic 250 69 $2,722

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Irene Koskan's medical specialty?
Dr. Irene Koskan practices Internal Medicine Physician in Bay St Louis, MS.
Where does Dr. Irene Koskan practice?
Dr. Irene Koskan practices at 835 Thames Ave, Bay St Louis, MS 395205005. Office phone: 2284664977.
What is Dr. Irene Koskan's NPI?
Dr. Irene Koskan's National Provider Identifier (NPI) is 1831197862, issued by NPPES.
Does Dr. Irene Koskan accept Medicare assignment?
Yes. Dr. Irene Koskan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Irene Koskan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Chronic care management services (HCPCS 99490); Annual alcohol misuse screening, 5 to 15 minutes (HCPCS G0442). Source: CMS Medicare Physician & Other Practitioners file.