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DR. WILLIAM M DUNLAP MD
NPI 1255471819
Internal Medicine in Raleigh, NC

Active since February 06, 2007PECOS EnrolledAccepts Medicare Assignment
3521 HAWORTH DR, RALEIGH, NC 27609(919) 782-1806(919) 782-4756 Get Directions Write a Review

NPPES record last updated: January 29, 2009. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. William M Dunlap Md NPPES

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

DR. WILLIAM M DUNLAP MD (NPI 1255471819) is an individual internal medicine provider in Raleigh, North Carolina, licensed in North Carolina (14648) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS and is a graduate of Duke University School Of Medicine (1965).

NPPES Registry Identity

NPI1255471819
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. WILLIAM M DUNLAPCredential: MD
Location Address3521 HAWORTH DRRaleigh, NC 27609-7216
Mailing AddressPo Box 18563Raleigh, NC 27619-8563 · (919) 782-1806 · Fax (919) 782-1669
Phone(919) 782-1806
Fax(919) 782-4756
Sole ProprietorNo
Medical School CMSDuke University School Of MedicineGraduated 1965
Enumeration DateFebruary 6, 2007
Last NPPES UpdateJanuary 29, 2009
✔ NPI 1255471819 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NC · 14648
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3521 HAWORTH DR, Raleigh, NC 27609
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Other Identifiers 9

Other1522822Cigna
Medicare PIN206037G
Other0452684United Healthcare
Medicare UPINC83584
Other23244Medcost
Medicaid8929425NC
Other110079094Railroad Medicare
Medicare PIN206037I
Other29425NC · Bcbs

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. William M Dunlap 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 ID3870571300
PECOS Enrollment IDI20040817001432
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.

Medicare Billing Reassignment

Medicare enrollment records show William Dunlap reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Raleigh Medical Group, PA
0.1 mi
Internal Medicine
3700 BARRETT DR STE 300
Raleigh, NC 27609
  • Reassigned Medicare billing, North Carolina enrollment
  • 109 clinicians in this Medicare group
NPI 1104962315 (919) 782-1806

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 27609 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$125.01 typical visit price
range $54.12 – $165.09
Typical copayment $31.25 (range $13.53 – $41.27)
Most-billed visit code 99204
Established Patient
$95.94 typical visit price
range $17.21 – $134.61
Typical copayment $23.98 (range $4.30 – $33.65)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 17

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

DR. KELLY NEAL MINSLEY M.D.
Internal Medicine
3521 HAWORTH DR
RALEIGH, NC 27609
Wake County (919) 782-1806
DR. ROBERT HODGES BILBRO MD
Internal Medicine
3521 HAWORTH DR
RALEIGH, NC 27609
Wake County (919) 782-1806
TAANA VIVIANO MD
Internal Medicine
3521 HAWORTH DR
RALEIGH, NC 27609
Wake County (919) 782-1806
NADINE PECHTER MD
Internal Medicine
3521 HAWORTH DR
RALEIGH, NC 27609
Wake County (919) 782-1806
MRS. LISA CHANDLER DAVIS PA-C
Physician Assistant
3521 HAWORTH DR
RALEIGH, NC 27609
Wake County (919) 782-1806
DR. JOHN ALBERT LANG III MD
Internal Medicine
3521 HAWORTH DR
RALEIGH, NC 27609
Wake County (919) 782-1806
LABORATORY CORPORATION OF AMERICA HOLDINGS
Clinical Medical Laboratory
3521 HAWORTH DR
RALEIGH, NC 27609
Wake County (919) 783-8477
BRITTANY LOWRY WEST PA-C
Physician Assistant
3521 HAWORTH DR
RALEIGH, NC 27609
Wake County (919) 782-1806

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 Dunlap's NPI number?

The NPI number for William Dunlap is 1255471819. It was assigned to this individual provider in the NPPES registry on February 6, 2007.

Where is William Dunlap located?

William Dunlap practices at 3521 Haworth Dr, Raleigh, NC 27609. The listed phone number is (919) 782-1806.

What is William Dunlap's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is William Dunlap enrolled in Medicare?

Yes. William Dunlap 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.

Which organization bills Medicare for William Dunlap's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Dunlap reassigns Medicare benefits to Raleigh Medical Group, PA (Raleigh, NC). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Dunlap's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for William Dunlap was last updated on January 29, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.