DR. JOHN SPECHT MADDOX MD
NPI 1528122256
Surgery - Trauma Surgery in Bethesda, MD

Active since December 20, 2006PECOS EnrolledAccepts Medicare Assignment
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVE, BETHESDA, MD 20889(301) 400-2201 Get Directions Write a Review

NPPES record last updated: May 30, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 30, 2025, Oct 21, 2020 (2 updates tracked since 2020).

About Dr. John Specht Maddox Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN SPECHT MADDOX MD (NPI 1528122256) is an individual trauma surgery provider in Bethesda, Maryland, licensed in Maryland (D0089752) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with Meritus Medical Center, and is a graduate of Uniformed Services Uhs Fe Hebert School Of Med (2006).

NPPES Registry Identity

NPI1528122256
Entity TypeIndividualMale
Primary Taxonomy2086S0127X
Provider Legal NameDR. JOHN SPECHT MADDOXCredential: MD
Location AddressWALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVEBethesda, MD 20889-0001
Mailing Address3823 Rodman St Nw Apt E23Washington, DC 20016-2816 · (240) 506-6532
Sole ProprietorNo
Medical School CMSUniformed Services Uhs Fe Hebert School Of MedGraduated 2006
Enumeration DateDecember 20, 2006
Last NPPES UpdateMay 30, 20252 updates tracked since enumeration
NPPES CertifiedMay 30, 2025
NPI 1528122256 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtySurgery · Trauma SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0127X
License Licensed in MD · D0089752
Definition
Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.
Also ListedSurgeryTaxonomy 208600000X · License D0089752 (MD)
WALTER REED NATIONAL MILITARY CTR, Bethesda, MD 20889

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. John Specht Maddox Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1759529944
PECOS Enrollment IDI20200812000129
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Meritus Medical Center

Acute Care Hospitals · Hagerstown, MD
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210001
Location11116 Medical Campus RoadHagerstown, MD 21742 · Washington County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Student in an Organized Health Care Education/Training Program
WALTER REED NATIONAL MILITARY CTR, 4494 NORTH PALMER ROAD, BUILDING 10, 1ST FLOOR, ROOM 10
BETHESDA, MD 20889
Dietitian, Registered
WALTER REED NATIONAL MILITARY CTR
BETHESDA, MD 20889
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
WALTER REED NATIONAL MILITARY CTR
BETHESDA, MD 20889
Dentist (General Practice)
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVENUE BLDG 2 ROOM 2661
BETHESDA, MD 20889
Internal Medicine (Hematology & Oncology)
WALTER REED NATIONAL MILITARY CTR
BETHESDA, MD 20889
Pediatrics (Pediatric Pulmonology)
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVE, DEPARTMENT OF PEDIATRICS
BETHESDA, MD 20889
Physical Therapist
WALTER REED NATIONAL MILITARY CTR, 4494 NORTH PALMER ROAD
BETHESDA, MD 20889
Social Worker (Clinical)
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVENUE
BETHESDA, MD 20889

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Maddox's NPI number?

The NPI number for John Maddox is 1528122256. It was assigned to this individual provider in the NPPES registry on December 20, 2006.

Where is John Maddox located?

John Maddox practices at Walter Reed National Military Ctr 8901 Wisconsin Ave, Bethesda, MD 20889. The listed phone number is (301) 400-2201.

What is John Maddox's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Trauma Surgery, with taxonomy code 2086S0127X.

Is John Maddox enrolled in Medicare?

Yes. John Maddox is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is John Maddox affiliated with any hospitals?

According to CMS data, John Maddox is affiliated with Meritus Medical Center.

When was this NPI record last updated?

The NPPES record for John Maddox was last updated on May 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.