Erin Obsniuk, CNP
Nurse Practitioner · Howell, MI
Erin Obsniuk, CNP is a nurse practitioner with a practice address in Howell, Michigan, and NPI 1164906392, issued on Sep 24, 2018. Check the license (Michigan 4704293066, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Erin Obsniuk
- Credential
- CNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 4704293066 MI
Self-reported in NPPES; status is on the state search - Practice location
- 3477 E Grand River Ave, Howell, MI 48843
- Phone
- (517) 234-6540
- Enumerated
- Sep 24, 2018
- Record last updated
- Aug 4, 2025
- Fax
- (517) 338-9083
- Medicare enrollment
- Enrolled (PECOS I20181220002977); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 3477 E Grand River Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sara Halama, DPTPhysical Therapist1104457134
- Carranda Koop, M.D.Internal Medicine Physician1023437456
- Ellen Tumbarella, DOFamily Medicine Physician1902483720
Verify Erin Obsniuk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 4704293066Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% fewer Medicare Part D claims than the average nurse practitioner in 2024
1,026 Medicare Part D claims for 300 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 23 claims were for opioids.
Most prescribed
- Atorvastatin Calcium74 claims
- Lisinopril46 claims
- Amlodipine Besylate44 claims
- Losartan Potassium38 claims
- Albuterol Sulfate Hfa35 claims
- Levothyroxine Sodium29 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
- Iha Health Services CorporationChelsea, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
12 nurse practitioner records list a practice address in Howell
They are 12 of the 1,026 NPPES records with a practice address in Howell, and 3,574 nurse practitioner records in Michigan.
All 12 in Howell → All 3,574 in Michigan → Every provider in Howell →
Other nurse practitioner records in Michigan
- Amina Abair, NP-CFlint, MI1083165161
- Linda Abbo, FNP-CFarmington Hills, MI1649814641
- Bilal Abdulla, NPDearborn, MI1912469701
- Sandra Abdullah, FNP-BCRochester Hills, MI1598592644
- Renee Aboona, NP-CRoyal Oak, MI1598346629
- Douglas Abraham, APRN, FNP-C, ENP-C,Battle Creek, MI1811689144
- Karyn Abrahamson, NPManistee, MI1588683288
- Sara Adair, NPNorton Shores, MI1841801362
- Barbara Adam, N.P.Detroit, MI1881918357
- Aimee Adams, ANP-BCLivonia, MI1740620970
Common questions
What is Erin Obsniuk, CNP's NPI number?
Erin Obsniuk, CNP's National Provider Identifier (NPI) is 1164906392, issued on Sep 24, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Erin Obsniuk, CNP located?
The NPPES record lists a practice address at 3477 E Grand River Ave, Howell, MI, 48843. Phone: (517) 234-6540. Providers update this record themselves, so call before visiting.
How can I verify Erin Obsniuk, CNP's license?
NPPES lists Michigan license number 4704293066, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Erin Obsniuk, CNP prescribe under Medicare Part D?
In 2024, Erin Obsniuk, CNP had 1,026 Medicare Part D claims for 300 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.