Ryan Michael Mackenzie, NP
Acute Care Nurse Practitioner · Ann Arbor, MI
Ryan Michael Mackenzie, NP is an acute care nurse practitioner with a practice address in Ann Arbor, Michigan, and NPI 1891570453, issued on Aug 30, 2023. Check the license (Michigan 4704268806, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ryan Michael Mackenzie
- Credential
- NP
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- 4704268806 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1500 E Medical Center Dr, Ann Arbor, MI 48109
- Phone
- (734) 647-5299
- Enumerated
- Aug 30, 2023
- Record last updated
- Apr 15, 2025
- Medicare enrollment
- Enrolled (PECOS I20231006000513); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 865 in Michigan → Look up another NPI →
Also registered at 1500 E Medical Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ryan Michael Mackenzie in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 4704268806Check 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. Brand-name drugs were 32% of claims.
Most prescribed
- Metoprolol Succinate22 claims
- Entresto19 claims
- Carvedilol16 claims
- Atorvastatin Calcium14 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.
Industry payments in 2024: $38.50
2 payments; by number, the most common kind was food and beverage; the largest payer was Kiniksa Pharmaceuticals International, plc. The 10,984 providers of this specialty with any payment received $647.94 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Associates IN Neurology PCFarmingtn Hls, MI
- Henry Ford Health SystemDetroit, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan Michael Mackenzie among 865 acute care nurse practitioner records in Michigan
Ryan Michael Mackenzie, NP 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 2023, is newer than 82% of them.
- NPI issued2023 · 82% of these records are older, 12% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2023 · median 2019 among the 597 with a school on file
- Record last updated2025 · 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 Ann Arbor → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Brittany Balzer, NPAnn Arbor, MI 481091730581539
- Jana Barkman, NPAnn Arbor, MI 481091013396456
- Punyacha Crocker, NPAnn Arbor, MI 481091801294020
- Amy Hibbard, NPAnn Arbor, MI 481091093130635
- Jennifer Ilacqua, MSN, ACNP-BCAnn Arbor, MI 481091245586726
- Christina Nutt, NPAnn Arbor, MI 481091699028266
- Martha Richard-Smolarek, NPAnn Arbor, MI 481091689874802
- Nancy Rodriguez-Galano, NPAnn Arbor, MI 481091942386909
Common questions
What is Ryan Michael Mackenzie, NP's NPI number?
Ryan Michael Mackenzie, NP's National Provider Identifier (NPI) is 1891570453, issued on Aug 30, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Michael Mackenzie, NP located?
The NPPES record lists a practice address at 1500 E Medical Center Dr, Ann Arbor, MI, 48109. Phone: (734) 647-5299. Providers update this record themselves, so call before visiting.
How can I verify Ryan Michael Mackenzie, NP's license?
NPPES lists Michigan license number 4704268806, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Ryan Michael Mackenzie, NP prescribe under Medicare Part D?
In 2024, Ryan Michael Mackenzie, NP 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.