MR. WILLIAM REGINALD SPENCER III PA-C
NPI 1679880066
Physician Assistant - Medical in Bel Air, MD

Q: What is William Spencer's NPI number?

The NPI number for William Spencer is 1679880066. It was assigned to this individual provider in the NPPES registry on September 7, 2010.

Q: What is William Spencer's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Q: When was this NPI record last updated?

The NPPES record for William Spencer was last updated on December 19, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.

Active since September 07, 2010PECOS Enrolled

520 UPPER CHESAPEAKE DR, BEL AIR, MD 21014(443) 643-1000 Get Directions Write a Review

NPPES record last updated: December 19, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 19, 2020, Oct 29, 2019 (2 updates tracked since 2019).

On this page

About Mr. William Reginald Spencer Iii Pa-c NPPES

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

MR. WILLIAM REGINALD SPENCER III PA-C (NPI 1679880066) is an individual medical provider in Bel Air, Maryland, licensed in Maryland (C0004283) and active in the NPI registry since September 2010. He is enrolled in Medicare PECOS and maintains a secondary practice location in York.

NPPES Registry Identity

NPI1679880066

Entity TypeIndividualMale

Primary Taxonomy363AM0700X

Provider Legal NameMR. WILLIAM REGINALD SPENCER IIICredential: PA-C

Location Address520 UPPER CHESAPEAKE DRBel Air, MD 21014-4339

Mailing Address8427 Avery RdRosedale, MD 21237-1751 · (410) 391-3578

Phone(443) 643-1000

Sole ProprietorNo

Enumeration DateSeptember 7, 2010

Last NPPES UpdateDecember 19, 20202 updates tracked since enumeration

NPPES CertifiedDecember 19, 2020

✔ NPI 1679880066 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363AM0700X

Licenses✔ Licensed in MD · C0004283✔ Licensed in PA · MA056654

520 UPPER CHESAPEAKE DR, Bel Air, MD 21014

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Secondary Practice Location 1

Location 11701 Innovation DrYork, PA 17408-8815 · Phone (717) 988-0000 · Fax (717) 782-5716

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. William Reginald Spencer Iii Pa-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

150 services149 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

114 services111 patients

Emergency department visit with low level of medical decision making 99283

An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.

18 services17 patients

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.

MRS. JANICE M EMERLING CNM

Advanced Practice Midwife

520 UPPER CHESAPEAKE DR, SUITE 301
BEL AIR, MD 21014

Harford County (443) 643-4300

DR. CLARENCE WINFRED GEHRIS JR. M.D.

Otolaryngology

520 UPPER CHESAPEAKE DR, SUITE 206
BEL AIR, MD 21014

Harford County (410) 879-9100

MR. BRADFORD H HOUCK PA-C

Physician Assistant (Surgical)

520 UPPER CHESAPEAKE DR, SUITE 306
BEL AIR, MD 21014

Harford County (410) 879-2006

ORTHOPAEDIC ASSOCIATES, PA

Orthopaedic Surgery

520 UPPER CHESAPEAKE DR, SUITE 304
BEL AIR, MD 21014

Harford County (410) 879-0090

MS. SAMANTHA DEMARCO M.S.

Clinical Exercise Physiologist

520 UPPER CHESAPEAKE DR
BEL AIR, MD 21014

Harford County (443) 643-3756

LUCY BELYN GANT CNM

Advanced Practice Midwife

520 UPPER CHESAPEAKE DR, SUITE 301
BEL AIR, MD 21014

Harford County (443) 643-4300

SUSQUEHANNA OB-GYN LLC

Obstetrics & Gynecology

520 UPPER CHESAPEAKE DR, SUITE 301
BEL AIR, MD 21014

Harford County (410) 939-3121

INTEGRAL NUCLEAR ASSOCIATES@BEL AIR

Clinic/Center (Radiology)

520 UPPER CHESAPEAKE DR, SUITE 205
BEL AIR, MD 21014

Harford County (410) 638-2883

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 William Spencer's NPI number?

The NPI number for William Spencer is 1679880066. It was assigned to this individual provider in the NPPES registry on September 7, 2010.

Where is William Spencer located?

William Spencer practices at 520 Upper Chesapeake Dr, Bel Air, MD 21014. The listed phone number is (443) 643-1000.

What is William Spencer's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Is William Spencer enrolled in Medicare?

Yes. William Spencer is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for William Spencer was last updated on December 19, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.