NPPES file of Aug 9, 2026

Siobhan Maureen Wulff, FNP-C

Family Medicine Physician · Chapel Hill, NC

Siobhan Maureen Wulff, FNP-C is a family medicine physician with a practice address in Chapel Hill, North Carolina, and NPI 1659047041, issued on Aug 17, 2021. Check the license (North Carolina 252476, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659047041
Name
Siobhan Maureen Wulff
Credential
FNP-C
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
252476 NC
Self-reported in NPPES; status is on the state search
Practice location
590 Manning Dr, Chapel Hill, NC 27599
Phone
(984) 974-4775
Enumerated
Aug 17, 2021
Record last updated
Aug 17, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20220124001398); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 590 Manning Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Grant Abass, MDStudent in an Organized Health Care Education/Training Program1932997434
  2. Anna Abrahamson, PHARMDAmbulatory Care Pharmacist1710595970
  3. Christine Adams, MDFamily Medicine Physician1922680818
  4. Rayhaan Adams, MSW, LCSWClinical Social Worker1629440524
  5. Rana Alkhaldi, MDFamily Medicine Physician1538659271
  6. James Allison, MDFamily Medicine Physician1720515000

Verify Siobhan Maureen Wulff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNorth Carolina Medical Board
    Search for license 252476
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the North Carolina license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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97% fewer Medicare Part D claims than the average family medicine physician in 2024

122 Medicare Part D claims for 11 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Siobhan Wulff122
  2. Specialty average3,544

Most prescribed

  1. Escitalopram Oxalate12 claims
  2. Lisinopril12 claims
  3. Pravastatin Sodium12 claims
  4. Trazodone Hcl12 claims
  5. Famotidine11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. University OF North Carolina AT Chapel HillChapel Hill, NC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Siobhan Maureen Wulff among 4,953 family medicine physician records in North Carolina

Siobhan Maureen Wulff, FNP-C is one of 4,953 family medicine physician records with a practice address in North Carolina. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.

  • NPI issued2021 · 91% of these records are older, 6% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2021 · median 2006 among the 3,104 with a school on file
  • Record last updated2021 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

147 family medicine physician records list a practice address in Chapel Hill

They are 147 of the 7,608 NPPES records with a practice address in Chapel Hill, and 4,953 family medicine physician records in North Carolina.

The 8 family medicine physician records with the nearest ZIP codes

  1. Gary Asher, MDChapel Hill, NC 275991669482972
  2. Evan Ashkin, MDChapel Hill, NC 275991326142019
  3. Lanier Ayscue, MDChapel Hill, NC 275991073626552
  4. Kathleen Barnhouse, MDChapel Hill, NC 275991891899506
  5. Martha Carlough, MDChapel Hill, NC 275991184729519
  6. Timothy Daaleman, DOChapel Hill, NC 275991699870683
  7. Allen Daugird, MDChapel Hill, NC 275991033214036
  8. Clark Denniston, MDChapel Hill, NC 275991871698878

Common questions

What is Siobhan Maureen Wulff, FNP-C's NPI number?

Siobhan Maureen Wulff, FNP-C's National Provider Identifier (NPI) is 1659047041, issued on Aug 17, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Siobhan Maureen Wulff, FNP-C located?

The NPPES record lists a practice address at 590 Manning Dr, Chapel Hill, NC, 27599. Phone: (984) 974-4775. Providers update this record themselves, so call before visiting.

How can I verify Siobhan Maureen Wulff, FNP-C's license?

NPPES lists North Carolina license number 252476, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Siobhan Maureen Wulff, FNP-C prescribe under Medicare Part D?

In 2024, Siobhan Maureen Wulff, FNP-C had 122 Medicare Part D claims for 11 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.