Karen Ann Merritt
Acute Care Nurse Practitioner · Port Huron, MI
Karen Ann Merritt is an acute care nurse practitioner with a practice address in Port Huron, Michigan, and NPI 1225569601, issued on Mar 27, 2017. Check the license (Michigan 4704091836, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Ann Merritt
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- 4704091836 MI
Self-reported in NPPES; status is on the state search - Practice location
- 4094 Gratiot Ave, Port Huron, MI 48060
- Phone
- (810) 841-3771
- Enumerated
- Mar 27, 2017
- Record last updated
- Mar 27, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (810) 216-0505
- Medicare enrollment
- Enrolled (PECOS I20191112001851); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 865 in Michigan → Look up another NPI →
Verify Karen Ann Merritt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 4704091836Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024
200 Medicare Part D claims for 47 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Atorvastatin Calcium21 claims
- Santyl15 claims
- Alprazolam12 claims
- Losartan Potassium11 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
- Transitional Care Services LLCWaterford, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Ann Merritt among 865 acute care nurse practitioner records in Michigan
Karen Ann Merritt is one of 865 acute care nurse practitioner records with a practice address in Michigan. 83% 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 40% of them.
- NPI issued2017 · 40% of these records are older, 55% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2016 · median 2019 among the 597 with a school on file
- Record last updated2017 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Acute Care Nurse Practitioner providers in Michigan
There are 865 acute care nurse practitioner records in Michigan.
All 865 in Michigan → Every provider in Port Huron → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Khalida Graham, MSN, FNP-CPort Huron, MI 480601255859898
- Margaret Gressle, ACNP-BCPort Huron, MI 480601003119132
- Janette Guertin, ACNP-BCPort Huron, MI 480601619361870
- Candise Love, RNPort Huron, MI 480601801102371
- Katherine SchultzPort Huron, MI 480601952059065
- Diane Schunk, ACNPPort Huron, MI 480601346506391
- Amy Storey, NPPort Huron, MI 480601013459320
- Sherry Kurzym, NP-BCFort Gratiot, MI 480591699426478
Common questions
What is Karen Ann Merritt's NPI number?
Karen Ann Merritt's National Provider Identifier (NPI) is 1225569601, issued on Mar 27, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Karen Ann Merritt located?
The NPPES record lists a practice address at 4094 Gratiot Ave, Port Huron, MI, 48060. Phone: (810) 841-3771. Providers update this record themselves, so call before visiting.
How can I verify Karen Ann Merritt's license?
NPPES lists Michigan license number 4704091836, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Ann Merritt prescribe under Medicare Part D?
In 2024, Karen Ann Merritt had 200 Medicare Part D claims for 47 beneficiaries; the average among acute care nurse practitioner prescribers was 594. 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.