Doctor profile · Federal record

Dr. Mark Hosak, M.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · Bethlehem, PA

  • NPI 1871889949
  • Accepts Medicare
  • MIPS 90.3 / 100 · 2023
  • 15 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
801 Ostrum St
Bethlehem, PA 180151000
(610) 954-4000
Mailing address
1021 Devonshire RD
Allentown, PA 181035615

Credentials & registration

NPPES · NUCC
NPI registered
June 2011 — 15 yrs on file
Profile last updated
March 31, 2014
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Pennsylvania #MD450419

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1871889949. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
336
Distinct HCPCS
3
Medicare allowed
$53,032
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 189 186 $173
99284 Emergency department visit with moderate level of medical decision making 111 105 $118
99291 Critical care, first 30-74 minutes 36 36 $200

In context: peer comparison

Among 102 peers in this city , average services per provider: 99. This provider delivers 3.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
69
Patients
69
Total drug cost
$850
Drug Type Claims Patients Total cost
Cephalexin Generic 25 25 $261
Naproxen Generic 21 21 $62
Ondansetron Hcl Generic 12 12 $37
Diclofenac Sodium Generic 11 11 $490

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Hosak's medical specialty?
Dr. Mark Hosak practices Emergency Medicine Physician in Bethlehem, PA.
Where does Dr. Mark Hosak practice?
Dr. Mark Hosak practices at 801 Ostrum St, Bethlehem, PA 180151000. Office phone: 6109544000.
What is Dr. Mark Hosak's NPI?
Dr. Mark Hosak's National Provider Identifier (NPI) is 1871889949, issued by NPPES.
Does Dr. Mark Hosak accept Medicare assignment?
Yes. Dr. Mark Hosak accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Hosak commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.