Jennifer Wollack, D.O.
NPI 1265880140 · Internal Medicine Physician · Lansing, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Wollack, D.O. is a Internal Medicine Physician provider in Lansing, MI (NPI 1265880140).
Provider details
- NPI number
- 1265880140
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
810 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 484 | $79 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 122 | $115 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 75 | $50 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 46 | $82 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 42 | $132 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 22 | 21 |
| Bumetanide | 20 | — |
| Carvedilol | 17 | — |
| Lisinopril | 16 | — |
| Cephalexin | 15 | 15 |
| Furosemide | 13 | 13 |
| Digoxin | 13 | — |
| Metoprolol Succinate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$85 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 3031 W Grand Blvd Ste 450Detroit, MI 48202-3026Phone: (248) 225-0423
Registry dates
- Enumerated
- 2016-06-01
- Last updated
- 2025-03-24
- Certified
- 2025-03-24
Frequently asked questions
- What is Jennifer Wollack's NPI number?
- Jennifer Wollack's National Provider Identifier (NPI) is 1265880140, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Wollack's specialty?
- Jennifer Wollack is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jennifer Wollack located?
- Jennifer Wollack's practice location on file with NPPES is 3955 Patient Care Dr, Lansing, MI 48911-4299.
- What is Jennifer Wollack's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Wollack is (517) 374-7600.
- Does Jennifer Wollack accept Medicare?
- Jennifer Wollack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Wollack's NPI active?
- Yes — Jennifer Wollack's NPI (1265880140) is active in the NPPES registry as of the last update on 2025-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.