DIANNE FAYE HARKER NP
NPI 1891361739
Nurse Practitioner in Saginaw, MI

Active since June 01, 2021PECOS EnrolledAccepts Medicare Assignment
700 COOPER AVE, SAGINAW, MI 48602(989) 583-4000 Get Directions Write a Review

NPPES record last updated: June 29, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 29, 2021, Jun 6, 2021 (2 updates tracked since 2021).

About Dianne Faye Harker Np NPPES

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

DIANNE FAYE HARKER NP (NPI 1891361739) is an individual nurse practitioner in Saginaw, Michigan, licensed in Michigan (4704191816) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS, is affiliated with Covenant Medical Center, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1891361739
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameDIANNE FAYE HARKERCredential: NP
Location Address700 COOPER AVESaginaw, MI 48602-5383
Mailing Address700 Cooper AveSaginaw, MI 48602-5383 · (989) 583-4000
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateJune 1, 2021
Last NPPES UpdateJune 29, 20212 updates tracked since enumeration
NPPES CertifiedJune 29, 2021
✔ NPI 1891361739 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in MI · 4704191816
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedRegistered NurseTaxonomy 163W00000X · License 4704191818NSA210D8 (MI)
700 COOPER AVE, Saginaw, MI 48602

Other Names 1

Professional Name (2)Ms. Dianne Faye Harker Np

Accepted Insurance

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

Dianne Faye Harker Np 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 ID7315348174
PECOS Enrollment IDI20210630002496
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 Reassignment

Medicare enrollment records show Dianne Harker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Infectious Disease
2233 N CENTER RD
Saginaw, MI 48603
  • Reassigned Medicare billing, Michigan enrollment
  • 2 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.

Areas of Expertise CMS Part B claims 2

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
807 services265 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
144 services134 patients

Hospital Affiliations CMS Care Compare

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

Covenant Medical Center

Acute Care Hospitals · Saginaw, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230070
Location1447 N HarrisonSaginaw, MI 48602 · Saginaw County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48602 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
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
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 Anesthetist, Certified Registered
700 COOPER AVE
SAGINAW, MI 48602
Student in an Organized Health Care Education/Training Program
700 COOPER AVE
SAGINAW, MI 48602
Student in an Organized Health Care Education/Training Program
700 COOPER AVE
SAGINAW, MI 48602
Student in an Organized Health Care Education/Training Program
700 COOPER AVE
SAGINAW, MI 48602
Physical Therapist
700 COOPER AVE
SAGINAW, MI 48602
Student in an Organized Health Care Education/Training Program
700 COOPER AVE
SAGINAW, MI 48602
Nurse Anesthetist, Certified Registered
700 COOPER AVE
SAGINAW, MI 48602
Nurse Anesthetist, Certified Registered
700 COOPER AVE
SAGINAW, MI 48602

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 Dianne Harker's NPI number?

The NPI number for Dianne Harker is 1891361739. It was assigned to this individual provider in the NPPES registry on June 1, 2021. The provider is also known as Ms. Dianne Faye Harker Np.

Where is Dianne Harker located?

Dianne Harker practices at 700 Cooper Ave, Saginaw, MI 48602. The listed phone number is (989) 583-4000.

What is Dianne Harker's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Dianne Harker enrolled in Medicare?

Yes. Dianne Harker 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 organization bills Medicare for Dianne Harker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dianne Harker reassigns Medicare benefits to Palaniandy K Kogulan MD PLLC (Saginaw, MI). The 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 Dianne Harker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Dianne Harker accept?

Health plans from Blue Cross Blue Shield of Michigan Mutual Insurance Company list Dianne Harker as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Dianne Harker affiliated with any hospitals?

According to CMS data, Dianne Harker is affiliated with Covenant Medical Center.

When was this NPI record last updated?

The NPPES record for Dianne Harker was last updated on June 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.