John Preston, M.D.
NPI 1134129190 · Anesthesiology Physician · Glen Burnie, MD
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Preston, M.D. is a Anesthesiology Physician provider in Glen Burnie, MD (NPI 1134129190).
Provider details
- NPI number
- 1134129190
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- D0058442 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
404 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Injection of Anesthetic Agent And/Or Steroid Into Arm Nerve Bundle (brachial Plexus)64415 | 101 | $71 |
| Anesthesia for Procedure on Nerves, Muscles, Tendons, and Tissue of Forearm, Wrist, and Hand01810 | 87 | $120 |
| Anesthesia for Other Procedure on Top of Arm Bone and Shoulder Joint01630 | 50 | $239 |
| Anesthesia for Other Procedure on Forearm, Wrist, Or Hand Bones01830 | 48 | $175 |
| Injection of Anesthetic Agent And/Or Steroid Into Other Nerve Or Branch64450 | 21 | $32 |
| Ultrasonic Guidance for Needle Placement76942 | 20 | $30 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-29
- Last updated
- 2015-07-15
Frequently asked questions
- What is John Preston's NPI number?
- John Preston's National Provider Identifier (NPI) is 1134129190, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Preston's specialty?
- John Preston is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Preston located?
- John Preston's practice location on file with NPPES is 301 Hospital Dr, Glen Burnie, MD 21061-5803.
- What is John Preston's phone number?
- The practice phone number listed in the NPPES registry for John Preston is (410) 787-4000.
- Does John Preston accept Medicare?
- John Preston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Preston's NPI active?
- Yes — John Preston's NPI (1134129190) is active in the NPPES registry as of the last update on 2015-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.