Doctor profile · Federal record

Dr. Douglas Krefman, D.C.

Chiropractor (CMS: Chiropractic) · Chicago, IL

  • NPI 1609243310
  • Accepts Medicare
  • 11 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
922 W Diversey Pkwy
Chicago, IL 606141416
(773) 529-0057

Credentials & registration

NPPES · NUCC
NPI registered
August 2015 — 11 yrs on file
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
111N00000X — NUCC code
State license (1)
Illinois #038012867

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1609243310. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
115
Distinct HCPCS
1
Medicare allowed
$4,644
HCPCS Description Services Patients Avg allowed
98941 Chiropractic manipulative treatment, 3-4 spinal regions 115 14 $40

In context: peer comparison

Among 41 peers in this city , average services per provider: 328. This provider delivers 0.4× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Douglas Krefman's medical specialty?
Dr. Douglas Krefman practices Chiropractor in Chicago, IL.
Where does Dr. Douglas Krefman practice?
Dr. Douglas Krefman practices at 922 W Diversey Pkwy, Chicago, IL 606141416. Office phone: 7735290057.
What is Dr. Douglas Krefman's NPI?
Dr. Douglas Krefman's National Provider Identifier (NPI) is 1609243310, issued by NPPES.
Does Dr. Douglas Krefman accept Medicare assignment?
Yes. Dr. Douglas Krefman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Douglas Krefman commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 3-4 spinal regions (HCPCS 98941). Source: CMS Medicare Physician & Other Practitioners file.