NPPES file of Aug 9, 2026

Heather Lynn Diffendall, CRNP

Gerontology Nurse Practitioner · Lebanon, PA

Heather Lynn Diffendall, CRNP is a gerontology nurse practitioner with a practice address in Lebanon, Pennsylvania, and NPI 1194197731, issued on Oct 22, 2015. Check the license (Pennsylvania SP015445, 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
1194197731
Name
Heather Lynn Diffendall
Credential
CRNP
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License numbers
SP015445 PA
MD3716339 PA
Self-reported in NPPES; status is on the state search
Practice location
775 Norman Dr, Lebanon, PA 17042
Phone
(717) 272-8173
Enumerated
Oct 22, 2015
Record last updated
May 6, 2026
Fax
(717) 272-4029
Medicare enrollment
Enrolled (PECOS I20160112001071); 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.
Download card Updates feed

Also registered at 775 Norman Dr

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

  1. Neil Baksh, CRNPNurse Practitioner1013434356
  2. Melissa Baldwin, CRNPGerontology Nurse Practitioner1114467347
  3. Adrian Bell, D.O.Interventional Cardiology Physician1477716306
  4. Kristen Berfield, CRNPAcute Care Nurse Practitioner1487028411
  5. Christopher BreenPulmonary Disease Physician1396160313
  6. Alexis Campbell, PA-CPhysician Assistant1033590765

Verify Heather Lynn Diffendall 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 SP015445
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Industry payments in 2024: $243.61

2 payments; by number, the most common kind was food and beverage; the largest payer was Ceribell, Inc. The 3,903 providers of this specialty with any payment received $742.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Heather Diffendall$243.61
  2. Specialty average$742.05

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. Good Samaritan Physician ServicesEphrata, PA
  2. Wellspan Medical GroupYork, PA

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

Heather Lynn Diffendall among 587 gerontology nurse practitioner records in Pennsylvania

Heather Lynn Diffendall, CRNP is one of 587 gerontology nurse practitioner records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 23% of them.

  • NPI issued2015 · 23% of these records are older, 71% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2015 · median 2018 among the 375 with a school on file
  • Record last updated2026 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gerontology Nurse Practitioner providers in Pennsylvania

There are 587 gerontology nurse practitioner records in Pennsylvania.

The 8 gerontology nurse practitioner records with the nearest ZIP codes

  1. Melissa Baldwin, CRNPLebanon, PA 170421114467347
  2. Lisa Lakeman, MSN, RN, BC-ADM, CDELebanon, PA 170421679735203
  3. Stephanie Pritchard, CRNPLebanon, PA 170421285495168
  4. Kellyanne Rittle, CRNPLebanon, PA 170421780364653
  5. Lisette Rodriguez MoralesLebanon, PA 170421932036480
  6. Michelle Singer, CRNPLebanon, PA 170421194295071
  7. Leighanne Zimmerman, CRNPLebanon, PA 170421285308932
  8. Monica Brown-Luke, CRNPLemoyne, PA 170431265880678

Common questions

What is Heather Lynn Diffendall, CRNP's NPI number?

Heather Lynn Diffendall, CRNP's National Provider Identifier (NPI) is 1194197731, issued on Oct 22, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Heather Lynn Diffendall, CRNP located?

The NPPES record lists a practice address at 775 Norman Dr, Lebanon, PA, 17042. Phone: (717) 272-8173. Providers update this record themselves, so call before visiting.

How can I verify Heather Lynn Diffendall, CRNP's license?

NPPES lists Pennsylvania license number SP015445, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity 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.