Doctor profile · Federal record

Dr. John Preston, M.D.

Anesthesiology Physician · Glen Burnie, MD

  • NPI 1134129190
  • 21 yrs on file
  • Male
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
301 Hospital Dr
Glen Burnie, MD 210615803
(410) 787-4000
Mailing address
11085 Little Patuxent Pkwy 004
Columbia, MD 210442983

Credentials & registration

NPPES · NUCC
NPI registered
July 2005 — 21 yrs on file
Profile last updated
July 15, 2015
Specialty taxonomy
207L00000X — NUCC code
State license (1)
Maryland #D0058442

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134129190. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
410
Distinct HCPCS
10
Medicare allowed
$54,089
HCPCS Description Services Patients Avg allowed
64415 Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) 92 90 $72
01810 Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand 68 64 $119
01630 Anesthesia for other procedure on top of arm bone and shoulder joint 54 53 $233
01830 Anesthesia for other procedure on forearm, wrist, or hand bones 38 37 $167
64450 Injection of anesthetic agent and/or steroid into other nerve or branch 31 30 $30
01402 Anesthesia for procedure for total knee joint replacement 27 26 $340
76942 Ultrasonic guidance for needle placement 27 27 $32
64999 Other procedure on nervous system 22 22 $37
64447 Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 15 15 $65
01400 Anesthesia for other procedure or exam of knee joint using an endoscope 13 13 $167

In context: peer comparison

Among 6 peers in this city , average services per provider: 34. This provider delivers 12× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. John Preston's medical specialty?
Dr. John Preston practices Anesthesiology Physician in Glen Burnie, MD.
Where does Dr. John Preston practice?
Dr. John Preston practices at 301 Hospital Dr, Glen Burnie, MD 210615803. Office phone: 4107874000.
What is Dr. John Preston's NPI?
Dr. John Preston's National Provider Identifier (NPI) is 1134129190, issued by NPPES.
What procedures does Dr. John Preston commonly perform?
Top Medicare-reported procedures in 2023: Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (HCPCS 64415); Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand (HCPCS 01810); Anesthesia for other procedure on top of arm bone and shoulder joint (HCPCS 01630). Source: CMS Medicare Physician & Other Practitioners file.