Jennifer Michelle Wollack, D.O.
Internal Medicine Physician · Lansing, MI
Jennifer Michelle Wollack, D.O. is an internal medicine physician with a practice address in Lansing, Michigan, and NPI 1265880140, issued on Jun 1, 2016. Check the license (Michigan 5101022728, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Jennifer Michelle Wollack
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 5101022728 MI
Self-reported in NPPES; status is on the state search - Practice location
- 3955 Patient Care Dr, Lansing, MI 48911
- Phone
- (517) 374-7600
- Enumerated
- Jun 1, 2016
- Record last updated
- Mar 24, 2025
- Fax
- (885) 480-9150
- Medicare enrollment
- Enrolled (PECOS I20190812003615); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Osteopathic Medicine, 2016
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 3955 Patient Care Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Whitney Hounshell, D.O.Internal Medicine Physician1366648842
- Katie Sikes, NPNurse Practitioner1033530894
- Melinda VandykeFamily Nurse Practitioner1952820235
Verify Jennifer Michelle Wollack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101022728Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
285 Medicare Part D claims for 122 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 29 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen22 claims
- Bumetanide20 claims
- Carvedilol17 claims
- Lisinopril16 claims
- Cephalexin15 claims
- Digoxin13 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: $85.17
4 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 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.
2 hospitals and group practices
- Capital Internal Medicine Associates P.C.Lansing, MI
- Eaton Rapids Medical CenterEaton Rapids, MI · Critical Access Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Jennifer Michelle Wollack among 5,735 internal medicine physician records in Michigan
Jennifer Michelle Wollack, D.O. is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 69% of them.
- NPI issued2016 · 69% of these records are older, 29% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2016 · median 2006 among the 3,564 with a school on file
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
135 internal medicine physician records list a practice address in Lansing
They are 135 of the 5,276 NPPES records with a practice address in Lansing, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Lansing → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Melvin Cherry, MDLansing, MI 489111386735413
- Charles Dehlin, DOLansing, MI 489111952308843
- Paul Deweese, MDLansing, MI 489111144326679
- Barbara Fretwell, MDLansing, MI 489111578561429
- Amit Ghose, MDLansing, MI 489111639177686
- Whitney Hounshell, D.O.Lansing, MI 489111366648842
- Justin Kisaka, DOLansing, MI 489111912128539
- Michael Kowalczyk, DOLansing, MI 489111649277211
Common questions
What is Jennifer Michelle Wollack, D.O.'s NPI number?
Jennifer Michelle Wollack, D.O.'s National Provider Identifier (NPI) is 1265880140, issued on Jun 1, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Michelle Wollack, D.O. located?
The NPPES record lists a practice address at 3955 Patient Care Dr, Lansing, MI, 48911. Phone: (517) 374-7600. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Michelle Wollack, D.O.'s license?
NPPES lists Michigan license number 5101022728, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jennifer Michelle Wollack, D.O. prescribe under Medicare Part D?
In 2024, Jennifer Michelle Wollack, D.O. had 285 Medicare Part D claims for 122 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.