NPPES file of Aug 9, 2026

Debra Ann Williston, CRNP

Adult Health Nurse Practitioner · Allentown, PA

Debra Ann Williston, CRNP is an adult health nurse practitioner with a practice address in Allentown, Pennsylvania, and NPI 1669477543, issued on Jun 16, 2005. Check the license (Pennsylvania SP007862, as entered in NPPES) with the Pennsylvania board that licenses this profession; 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
1669477543
Name
Debra Ann Williston
Credential
CRNP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
SP007862 PA
Self-reported in NPPES; status is on the state search
Practice location
1230 S Cedar Crest Blvd Stes 301, 302, 304, Allentown, PA 18103
Phone
(610) 432-4529
Enumerated
Jun 16, 2005
Record last updated
Jun 2, 2022
Fax
(610) 432-2206
Medicare enrollment
Enrolled (PECOS I20040622001312); 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 1230 S Cedar Crest Blvd Stes 301, 302, 304

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

  1. Tayyab Ali, MDNephrology Physician1710986559
  2. Audrey Anatalio, PA-CMedical Physician Assistant1316581259
  3. Cheryl Bitting, CRNPFamily Nurse Practitioner1891888301
  4. Ravindra Bollu, M.D.Nephrology Physician1194716845
  5. Margaret Duffy, MDNephrology Physician1518233881
  6. Eric Fels, D.O.Nephrology Physician1821089590

Verify Debra Ann Williston in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license SP007862
    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
Find the Pennsylvania 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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49% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

650 Medicare Part D claims for 91 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Debra Williston650
  2. Specialty average1,280

Most prescribed

  1. Sevelamer Carbonate111 claims
  2. Calcium Acetate82 claims
  3. Lanthanum Carbonate57 claims
  4. Sps46 claims
  5. Losartan Potassium38 claims
  6. Carvedilol28 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.

Industry payments in 2024: $476.28

4 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Debra Williston$476.28
  2. Specialty average$946.40

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Kidney Care Specialists LLCAllentown, PA
  2. Valley Kidney Specialists, P.C.Allentown, PA

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

Debra Ann Williston among 1,368 adult health nurse practitioner records in Pennsylvania

Debra Ann Williston, CRNP is one of 1,368 adult health nurse practitioner records with a practice address in Pennsylvania. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 96% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2003 · median 2012 among the 678 with a school on file
  • Record last updated2022 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in Pennsylvania

There are 1,368 adult health nurse practitioner records in Pennsylvania.

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Phyllis Amrick, CRNPAllentown, PA 181031467621458
  2. Jean Cain, CRNPAllentown, PA 181031558404319
  3. Mary Damweber, CRNPAllentown, PA 181031255385423
  4. Diane Deangelo, CRNPAllentown, PA 181031760422703
  5. Barbara Ebert, CRNPAllentown, PA 181031073600425
  6. Denise Fontana, NPAllentown, PA 181031467564898
  7. Kimberly Gey, CRNPAllentown, PA 181031548326564
  8. Judith Madaus, CRNPAllentown, PA 181031629241641

Common questions

What is Debra Ann Williston, CRNP's NPI number?

Debra Ann Williston, CRNP's National Provider Identifier (NPI) is 1669477543, issued on Jun 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Debra Ann Williston, CRNP located?

The NPPES record lists a practice address at 1230 S Cedar Crest Blvd Stes 301, 302, 304, Allentown, PA, 18103. Phone: (610) 432-4529. Providers update this record themselves, so call before visiting.

How can I verify Debra Ann Williston, CRNP's license?

NPPES lists Pennsylvania license number SP007862, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

How much does Debra Ann Williston, CRNP prescribe under Medicare Part D?

In 2024, Debra Ann Williston, CRNP had 650 Medicare Part D claims for 91 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.