MS. MARISSA CLAIRE NIEMEYER MSN, AGPCNP-C
NPI 1003485194
Nurse Practitioner - Gerontology in Grand Rapids, MI

Q: What is Marissa Niemeyer's NPI number?

The NPI number for Marissa Niemeyer is 1003485194. It was assigned to this individual provider in the NPPES registry on June 22, 2021.

Q: What is Marissa Niemeyer's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Marissa Niemeyer was last updated on January 31, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.

Active since June 22, 2021PECOS EnrolledAccepts Medicare Assignment

145 MICHIGAN ST NE STE 3410, GRAND RAPIDS, MI 49503(616) 391-9945 Get Directions Write a Review

NPPES record last updated: January 31, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 27, 2021, Jun 30, 2021, Jun 23, 2021 (3 updates tracked since 2021).

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About Ms. Marissa Claire Niemeyer Msn, Agpcnp-c NPPES

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

MS. MARISSA CLAIRE NIEMEYER MSN, AGPCNP-C (NPI 1003485194) is an individual gerontology provider in Grand Rapids, Michigan, licensed in Michigan (4704330088) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1003485194

Entity TypeIndividualFemale

Primary Taxonomy363LG0600X

Provider Legal NameMS. MARISSA CLAIRE NIEMEYERCredential: MSN, AGPCNP-C

Location Address145 MICHIGAN ST NE STE 3410Grand Rapids, MI 49503-2563

Mailing Address100 Michigan St Ne # Mc845Grand Rapids, MI 49503-2560

Phone(616) 391-9945

Sole ProprietorNo

Medical School CMSOtherGraduated 2021

Enumeration DateJune 22, 2021

Last NPPES UpdateJanuary 31, 20253 updates tracked since enumeration

NPPES CertifiedJanuary 31, 2025

✔ NPI 1003485194 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

License✔ Licensed in MI · 4704330088

145 MICHIGAN ST NE STE 3410, Grand Rapids, MI 49503

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.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

Ms. Marissa Claire Niemeyer Msn, Agpcnp-c 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 ID6901208040

PECOS Enrollment IDI20221029000138

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

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

Spectrum Health Primary Care Partners

0.1 mi

Pediatric Endocrinology

35 MICHIGAN ST NE STE 1800
Grand Rapids, MI 49503

Reassigned Medicare billing, Michigan enrollment
2,446 clinicians in this Medicare group

NPI 1326599671 (616) 391-3933

Theoria Medical

97 mi

Internal Medicine

6247 GRAND RIVER RD STE 400
Brighton, MI 48114

Reassigned Medicare billing, Michigan enrollment
383 clinicians in this Medicare group

NPI 1164186946 (810) 215-7177

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 10

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 nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309

A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.

595 services75 patients

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308

A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.

259 services62 patients

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309

197 services58 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

172 services28 patients

Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439

Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.

91 services25 patients

Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 99310

A follow-up nursing facility visit is a routine check-up that typically lasts about 35 minutes. During this visit, your health status is evaluated, any changes in your condition are noted, and necessary adjustments to your care plan are made. It's an essential part of maintaining your health.

62 services49 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49503 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.

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Administration set, with small volume nonfiltered pneumatic nebulizer, disposable A7003

DME-Other DME · category DE000N

1 supplier11 claims22 services$1.43 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

1 supplier15 claims15 services$27.50 avg. paid by Medicare

Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613

DME-Drugs Administered Through DME · category DG006N

1 supplier13 claims3,900 services$0.03 avg. paid by Medicare

Standard wheelchair K0001

DME-Wheelchairs · category DD000N

2 suppliers16 claims16 services$13.22 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

1 supplier12 claims12 services$23.91 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

KRISTIN INGER M.D.

Internal Medicine (Hospice and Palliative Medicine)