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DIANA CATHERINE DIEMER FNP
NPI 1104313436
Family Medicine in Hastings, MI

Active since April 23, 2018PECOS EnrolledAccepts Medicare Assignment
1005 W GREEN ST STE 304, HASTINGS, MI 49058(269) 948-8057(269) 948-8964 Get Directions Write a Review

NPPES record last updated: April 23, 2018. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Diana Catherine Diemer Fnp NPPES

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

DIANA CATHERINE DIEMER FNP (NPI 1104313436) is an individual family medicine provider in Hastings, Michigan, licensed in Michigan (4704272488) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, is affiliated with Corewell Health Pennock Hospital, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1104313436
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDIANA CATHERINE DIEMERCredential: FNP
Location Address1005 W GREEN ST STE 304Hastings, MI 49058-1725
Mailing Address1005 W Green St Ste 304Hastings, MI 49058-1725 · (269) 948-8057 · Fax (269) 948-8964
Phone(269) 948-8057
Fax(269) 948-8964
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateApril 23, 2018
✔ NPI 1104313436 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in MI · 4704272488
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
1005 W GREEN ST STE 304, Hastings, MI 49058
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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

Diana Catherine Diemer Fnp 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 ID7719232057
PECOS Enrollment IDI20180611000269
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

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.
17 services13 patients

Hospital Affiliations CMS Care Compare

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

Corewell Health Pennock Hospital

Critical Access Hospitals · Hastings, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number231339
Location1009 W Green StHastings, MI 49058 · Barry County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49058 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.

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 Diana Diemer's NPI number?

The NPI number for Diana Diemer is 1104313436. It was assigned to this individual provider in the NPPES registry on April 23, 2018.

Where is Diana Diemer located?

Diana Diemer practices at 1005 W Green St Ste 304, Hastings, MI 49058. The listed phone number is (269) 948-8057.

What is Diana Diemer's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Diana Diemer enrolled in Medicare?

Yes. Diana Diemer 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.

Is Diana Diemer affiliated with any hospitals?

According to CMS data, Diana Diemer is affiliated with Corewell Health Pennock Hospital.

When was this NPI record last updated?

The NPPES record for Diana Diemer was last updated on April 23, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.