Doctor profile · Federal record

Dr. John Demaio, D,C,

Nutrition Chiropractor (CMS: Chiropractic) · Chiropractor · Gambrills, MD

  • NPI 1356486450
  • Accepts Medicare
  • 36 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2391 Brandermill Blvd Ste 105
Gambrills, MD 210541985
(410) 721-2222
fax (410) 721-2437

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
June 6, 2022
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
111NN1001X — NUCC code
State license (1)
Maryland #S01522

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1356486450. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,424
Distinct HCPCS
2
Medicare allowed
$57,230
HCPCS Description Services Patients Avg allowed
98941 Chiropractic manipulative treatment, 3-4 spinal regions 1,288 154 $41
98940 Chiropractic manipulative treatment, 1-2 spinal regions 136 28 $29

In context: peer comparison

Among 1 peers in this city , average services per provider: 712. This provider delivers 2.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. John Demaio's medical specialty?
Dr. John Demaio practices Nutrition Chiropractor in Gambrills, MD.
Where does Dr. John Demaio practice?
Dr. John Demaio practices at 2391 Brandermill Blvd Ste 105, Gambrills, MD 210541985. Office phone: 4107212222.
What is Dr. John Demaio's NPI?
Dr. John Demaio's National Provider Identifier (NPI) is 1356486450, issued by NPPES.
Does Dr. John Demaio accept Medicare assignment?
Yes. Dr. John Demaio accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Demaio commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 3-4 spinal regions (HCPCS 98941); Chiropractic manipulative treatment, 1-2 spinal regions (HCPCS 98940). Source: CMS Medicare Physician & Other Practitioners file.