HEATHER LYNN DIFFENDALL CRNP
NPI 1194197731
Nurse Practitioner - Gerontology in Lebanon, PA

Active since October 22, 2015PECOS EnrolledAccepts Medicare Assignment
775 NORMAN DR, LEBANON, PA 17042(717) 272-8173(717) 272-4029 Get Directions Write a Review

NPPES record last updated: May 6, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 6, 2026, Apr 3, 2026, Jul 8, 2024 and 2 more (5 updates tracked since 2019).

About Heather Lynn Diffendall Crnp NPPES

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

HEATHER LYNN DIFFENDALL CRNP (NPI 1194197731) is an individual gerontology provider in Lebanon, Pennsylvania, licensed in Pennsylvania (SP015445) and active in the NPI registry since October 2015. She is enrolled in Medicare PECOS, is affiliated with Wellspan York Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1194197731
Entity TypeIndividualFemale
Primary Taxonomy363LG0600X
Provider Legal NameHEATHER LYNN DIFFENDALLCredential: CRNP
Location Address775 NORMAN DRLebanon, PA 17042-7497
Mailing Address601 Memory LnYork, PA 17402-2231 · (717) 851-1405 · Fax (717) 851-6969
Fax(717) 272-4029
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateOctober 22, 2015
Last NPPES UpdateMay 6, 20265 updates tracked since enumeration
NPPES CertifiedMay 6, 2026
✔ NPI 1194197731 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · GerontologyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LG0600X
Licenses✔ Licensed in PA · SP015445✔ Licensed in PA · MD3716339
775 NORMAN DR, Lebanon, PA 17042

Other Names 1

Former Name (1)Heather Lynn Goodwin

Secondary Practice Locations 3

Location 1169 Martin AveEphrata, PA 17522-1734 · Phone (717) 738-6753
Location 2252 S 4th StLebanon, PA 17042-6111 · Phone (717) 639-3150
Location 31001 S George StYork, PA 17403-3676 · Phone (717) 851-3467

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

Heather Lynn Diffendall Crnp 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 ID7416259130
PECOS Enrollment IDI20160112001071
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 Reassignments

2

Medicare enrollment records show Heather Diffendall reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Gastroenterology
761 NORMAN DRIVE
Lebanon, PA 17042
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 143 clinicians in this Medicare group
Vascular & Interventional Radiology
735 NORMAN DR
Lebanon, PA 17042
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 3,080 clinicians in this Medicare group

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

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Wellspan York Hospital

Acute Care Hospitals · York, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390046
Location1001 South George StreetYork, PA 17403 · York County
Emergency services Birthing friendly

Wellspan Good Samaritan Hospital

Acute Care Hospitals · Lebanon, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number390066
Location252 South 4th StreetLebanon, PA 17042 · Lebanon County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 17042 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
$84.88 typical visit price
range $54.64 – $166.87
Typical copayment $21.22 (range $13.66 – $41.71)
Most-billed visit code 99203
Established Patient
$96.82 typical visit price
range $17.33 – $135.84
Typical copayment $24.20 (range $4.33 – $33.96)
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 20

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

Nurse Practitioner
775 NORMAN DR
LEBANON, PA 17042
Physician Assistant
775 NORMAN DR
LEBANON, PA 17042
Internal Medicine (Cardiovascular Disease)
775 NORMAN DR
LEBANON, PA 17042
Internal Medicine (Cardiovascular Disease)
775 NORMAN DR
LEBANON, PA 17042
Internal Medicine (Cardiovascular Disease)
775 NORMAN DR
LEBANON, PA 17042
Internal Medicine (Cardiovascular Disease)
775 NORMAN DR
LEBANON, PA 17042
Internal Medicine (Cardiovascular Disease)
775 NORMAN DR
LEBANON, PA 17042
Internal Medicine (Cardiovascular Disease)
775 NORMAN DR
LEBANON, PA 17042

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 Heather Diffendall's NPI number?

The NPI number for Heather Diffendall is 1194197731. It was assigned to this individual provider in the NPPES registry on October 22, 2015. The provider is also known as Heather Lynn Goodwin.

Where is Heather Diffendall located?

Heather Diffendall practices at 775 Norman Dr, Lebanon, PA 17042. The listed phone number is (717) 272-8173.

What is Heather Diffendall's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.

Is Heather Diffendall enrolled in Medicare?

Yes. Heather Diffendall 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 organizations bill Medicare for Heather Diffendall's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Heather Diffendall reassigns Medicare benefits to 2 organizations: Good Samaritan Physician Services (Lebanon, PA) and Wellspan Medical Group (Lebanon, PA). Each 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 Heather Diffendall's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Heather Diffendall affiliated with any hospitals?

According to CMS data, Heather Diffendall is affiliated with Wellspan York Hospital and Wellspan Good Samaritan Hospital.

When was this NPI record last updated?

The NPPES record for Heather Diffendall was last updated on May 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.