Joseph Felix Mullen

Joseph Felix Mullen is a Surgery Physician provider (Surgery) practicing in Silver Spring, MD, registered in the NPPES registry with NPI 1528521416 since 2019. Practices at Capitol Surgeons, LLC (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1528521416
Entity type	Individual (Type 1)
Name	Joseph Felix Mullen
Sex	Male
Practice address	Silver Spring, MD, 20910
Phone	3015880057
Fax	3015880014
Enumeration date	2019-04-09
Last updated in NPPES	2025-11-05

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
208600000X	Surgery Physician	Primary	D0104494	CA

Copy-ready billing details

Provider: Joseph Mullen
NPI: 1528521416
Taxonomy: 208600000X (Surgery Physician)
Address: Silver Spring, MD, 20910

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1235115692	George Conrad	Individual	Surgery Physician	Silver Spring, MD
1235328691	Capitol Surgeons, LLC	Organization	Surgery Physician	Silver Spring, MD
1093079451	Gian-Paul Vidal	Individual	Surgery Physician	Silver Spring, MD
1689135501	William Wing	Individual	Surgery Physician	Silver Spring, MD

Verify this record

Cross-check NPI 1528521416 against the authoritative CMS record: view Joseph Felix Mullen on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

What specialty is Joseph Mullen?

Joseph Mullen is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-11-05.