Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. WALTER ELLSWORTH FASENMYER CRNP
NPI 1558079384
Nurse Practitioner - Adult Health in Seneca, PA

Q: What is Walter Fasenmyer's NPI number?

The NPI number for Walter Fasenmyer is 1558079384. It was assigned to this individual provider in the NPPES registry on November 10, 2022.

Q: What is Walter Fasenmyer's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Q: When was this NPI record last updated?

The NPPES record for Walter Fasenmyer was last updated on July 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 days 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.

Active since November 10, 2022PECOS Enrolled

100 FAIRFIELD DR, SENECA, PA 16346(814) 676-7900 Get Directions Write a Review

NPPES record last updated: July 30, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 30, 2026, Nov 10, 2022 (2 updates tracked since 2022).

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About Mr. Walter Ellsworth Fasenmyer Crnp NPPES

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

MR. WALTER ELLSWORTH FASENMYER CRNP (NPI 1558079384) is an individual adult health provider in Seneca, Pennsylvania, licensed in Pennsylvania (SP026575) and active in the NPI registry since November 2022. He is enrolled in Medicare PECOS, is affiliated with Upmc Northwest, and is a graduate of Other (2016).

NPPES Registry Identity

NPI1558079384

Entity TypeIndividualMale

Primary Taxonomy363LA2200X

Provider Legal NameMR. WALTER ELLSWORTH FASENMYERCredential: CRNP

Location Address100 FAIRFIELD DRSeneca, PA 16346-2130

Mailing Address100 Fairfield DrSeneca, PA 16346-2130 · (814) 676-7900

Phone(814) 676-7900

Sole ProprietorNo

Medical School CMSOtherGraduated 2016

Enumeration DateNovember 10, 2022

Last NPPES UpdateJuly 30, 20262 updates tracked since enumeration

NPPES CertifiedNovember 10, 2022

✔ NPI 1558079384 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LA2200X

License✔ Licensed in PA · SP026575

100 FAIRFIELD DR, Seneca, PA 16346

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. Walter Ellsworth Fasenmyer 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 ID2062881832

PECOS Enrollment IDI20221219000277

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.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

203 services149 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

52 services50 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

44 services28 patients

Hospital Affiliations CMS Care Compare 2

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

Upmc Northwest

Acute Care Hospitals · Seneca, PA

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number390091

Location100 Fairfield DriveSeneca, PA 16346 · Venango County

Emergency services Birthing friendly

Clarion Hospital

Acute Care Hospitals · Clarion, PA

OwnershipVoluntary non-profit - Private

CMS Certification Number390093

LocationOne Hospital DriveClarion, PA 16214 · Clarion County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 16346 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.

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