NPPES file of Aug 9, 2026

Caroline Maass, MSN, RN-BC, AGCNS-BC

Medical-Surgical Clinical Nurse Specialist · Grand Rapids, MI

Caroline Maass, MSN, RN-BC, AGCNS-BC is a medical-surgical clinical nurse specialist with a practice address in Grand Rapids, Michigan, and NPI 1750933644, issued on Jul 11, 2019. Check the license (Michigan 4704300003, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1750933644
Name
Caroline Maass
Credential
MSN, RN-BC, AGCNS-BC
Primary taxonomy
Medical-Surgical Clinical Nurse Specialist 364SM0705X
License number
4704300003 MI
Self-reported in NPPES; status is on the state search
Practice location
100 Michigan St NE, Grand Rapids, MI 49503
Phone
(616) 774-5009
Enumerated
Jul 11, 2019
Record last updated
Jul 11, 2019 (not updated in 7 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 100 Michigan St NE

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Aly Abdel-Mageed, MDPediatric Hematology & Oncology Physician1851361190
  2. Muriam Afzal, MDFamily Medicine Physician1174759906
  3. Shefali Aggarwal, M.DPediatric Critical Care Medicine Physician1720408313
  4. Muhammad Ali Akbar, MDInternal Medicine Physician1518529742
  5. Ghassan Al Nabhan, M.D.Internal Medicine Physician1326458068
  6. Zain AlajjouriEmergency Medicine Physician1366183295

Verify Caroline Maass in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 4704300003
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Michigan license search

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Industry payments in 2024: $99.97

1 payment: food and beverage; the largest payer was Mallinckrodt Hospital Products Inc. The 58 providers of this specialty with any payment received $594.72 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Caroline Maass$99.97
  2. Specialty average$594.72

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Medical-Surgical Clinical Nurse Specialist providers in Michigan

There are 3 medical-surgical clinical nurse specialist records in Michigan.

The 2 medical-surgical clinical nurse specialist records with the nearest ZIP codes

  1. Carol Teneyck, NPGrand Rapids, MI 495031255461687
  2. Anita Juriga, RN CNS, NP-CTroy, MI 480981841277597

Common questions

What is Caroline Maass, MSN, RN-BC, AGCNS-BC's NPI number?

Caroline Maass, MSN, RN-BC, AGCNS-BC's National Provider Identifier (NPI) is 1750933644, issued on Jul 11, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Caroline Maass, MSN, RN-BC, AGCNS-BC located?

The NPPES record lists a practice address at 100 Michigan St NE, Grand Rapids, MI, 49503. Phone: (616) 774-5009. Providers update this record themselves, so call before visiting.

How can I verify Caroline Maass, MSN, RN-BC, AGCNS-BC's license?

NPPES lists Michigan license number 4704300003, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.