NPPES file of Aug 9, 2026

Heather Lynn Grantz, NP

Adult Health Nurse Practitioner · Grand Rapids, MI

Heather Lynn Grantz, NP is an adult health nurse practitioner with a practice address in Grand Rapids, Michigan, and NPI 1669856142, issued on Jul 15, 2015. Check the license (Michigan 4704284671, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669856142
Name
Heather Lynn Grantz
Credential
NP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
4704284671 MI
Self-reported in NPPES; status is on the state search
Practice location
145 Michigan St NE Ste 3140, Grand Rapids, MI 49503
Phone
(616) 391-9945
Enumerated
Jul 15, 2015
Record last updated
Aug 15, 2022
Medicare enrollment
Enrolled (PECOS I20161103000026); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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Verify Heather Lynn Grantz 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 4704284671
    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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65% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

452 Medicare Part D claims for 117 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 204 claims were for opioids.

  1. Heather Grantz452
  2. Specialty average1,280

Most prescribed

  1. Oxycodone Hcl58 claims
  2. Hydrocodone-Acetaminophen54 claims
  3. Morphine Sulfate Er37 claims
  4. Morphine Sulfate33 claims
  5. Gabapentin29 claims
  6. Trazodone Hcl20 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.

The MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score87.5
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Spectrum Health Primary Care PartnersGrand Rapids, MI

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

Heather Lynn Grantz among 831 adult health nurse practitioner records in Michigan

Heather Lynn Grantz, NP is one of 831 adult health nurse practitioner records with a practice address in Michigan. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 64% of them.

  • NPI issued2015 · 64% of these records are older, 30% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 49% of these records are
  • Graduated2015 · median 2014 among the 406 with a school on file
  • Record last updated2022 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in Michigan

There are 831 adult health nurse practitioner records in Michigan.

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Debora Biller, NPGrand Rapids, MI 495031649233420
  2. Wendi Davidson, NPGrand Rapids, MI 495031023079159
  3. Edna Estrella, NPGrand Rapids, MI 495031124043435
  4. Michelle Faber, NPGrand Rapids, MI 495031245364744
  5. Megan Fitzpatrick, ANP-BC. M.S.Grand Rapids, MI 495031154686608
  6. Heather Moss, NPGrand Rapids, MI 495031790035160
  7. Suzanne Neureuther, NPGrand Rapids, MI 495031164448353
  8. Susan Owen, NP-CGrand Rapids, MI 495031871820514

Common questions

What is Heather Lynn Grantz, NP's NPI number?

Heather Lynn Grantz, NP's National Provider Identifier (NPI) is 1669856142, issued on Jul 15, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Heather Lynn Grantz, NP located?

The NPPES record lists a practice address at 145 Michigan St NE Ste 3140, Grand Rapids, MI, 49503. Phone: (616) 391-9945. Providers update this record themselves, so call before visiting.

How can I verify Heather Lynn Grantz, NP's license?

NPPES lists Michigan license number 4704284671, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

How much does Heather Lynn Grantz, NP prescribe under Medicare Part D?

In 2024, Heather Lynn Grantz, NP had 452 Medicare Part D claims for 117 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. Part D covers Medicare prescriptions only.

What is Heather Lynn Grantz, NP's MIPS final score?

The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.