NPPES file of Aug 9, 2026

Colleen Elizabeth Tillema, FNP

Family Nurse Practitioner · Ada, MI

Colleen Elizabeth Tillema, FNP is a family nurse practitioner with a practice address in Ada, Michigan, and NPI 1720503329, issued on Aug 4, 2017. Check the license (Michigan 4704297552, 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
1720503329
Name
Colleen Elizabeth Tillema
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
4704297552 MI
Self-reported in NPPES; status is on the state search
Practice location
7128 Fulton St E, Ada, MI 49301
Phone
(616) 825-3530
Enumerated
Aug 4, 2017
Record last updated
Sep 10, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20190424000702); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 7128 Fulton St E

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

  1. Ashley BarcroftPediatrics Physician1215376512
  2. Amy Bell, NPNurse Practitioner1184962672
  3. Jennifer Dykstra, FNP-CFamily Nurse Practitioner1497700868
  4. Lawrence Foe, MDFamily Medicine Physician1689678401
  5. Katie Green, LMSWClinical Social Worker1306509013
  6. Patrick Hayford, PA-CPhysician Assistant1417462110

Verify Colleen Elizabeth Tillema 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 4704297552
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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70% fewer Medicare Part D claims than the average family nurse practitioner in 2024

392 Medicare Part D claims for 141 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Colleen Tillema392
  2. Specialty average1,305

Most prescribed

  1. Levothyroxine Sodium31 claims
  2. Amlodipine Besylate22 claims
  3. Lisinopril19 claims
  4. Albuterol Sulfate Hfa13 claims
  5. Atorvastatin Calcium12 claims
  6. Hydrochlorothiazide12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Spectrum Health Primary Care PartnersKentwood, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Colleen Elizabeth Tillema among 5,356 family nurse practitioner records in Michigan

Colleen Elizabeth Tillema, FNP is one of 5,356 family nurse practitioner records with a practice address in Michigan. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 34% of them.

  • NPI issued2017 · 34% of these records are older, 60% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2017 · median 2019 among the 3,254 with a school on file
  • Record last updated2021 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 family nurse practitioner records list a practice address in Ada

They are 2 of the 193 NPPES records with a practice address in Ada, and 5,356 family nurse practitioner records in Michigan.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Jennifer Dykstra, FNP-CAda, MI 493011497700868
  2. Anna CvetichBaldwin, MI 493041164086526
  3. Samantha Lopez, FNPBaldwin, MI 493041689368375
  4. Tracy Moody, FNP-BCBaldwin, MI 493041578713798
  5. Amanda Reed, NPBaldwin, MI 493041033911896
  6. Cynthia Sherwood, FNP-BCBaldwin, MI 493041942554050
  7. Lisa West, APRN, FNP-CBaldwin, MI 493041528499233
  8. Hannah Antoni, FNPBelmont, MI 493061053980854

Common questions

What is Colleen Elizabeth Tillema, FNP's NPI number?

Colleen Elizabeth Tillema, FNP's National Provider Identifier (NPI) is 1720503329, issued on Aug 4, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Colleen Elizabeth Tillema, FNP located?

The NPPES record lists a practice address at 7128 Fulton St E, Ada, MI, 49301. Phone: (616) 825-3530. Providers update this record themselves, so call before visiting.

How can I verify Colleen Elizabeth Tillema, FNP's license?

NPPES lists Michigan license number 4704297552, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

How much does Colleen Elizabeth Tillema, FNP prescribe under Medicare Part D?

In 2024, Colleen Elizabeth Tillema, FNP had 392 Medicare Part D claims for 141 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions 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.