Lauren Franzblau, MD
NPI 1851895650ActiveIndividual· Allergy & Immunology· Ann Arbor, MI
Allergy & Immunology (MD) in Ann Arbor, Michigan, trained at University of Michigan Medical School (class of 2018). Their prescriptions cost Medicare Part D more than their services did: $269,125 for 271 claims, against $22,628 paid for services in 2024. Grifols USA, LLC was the largest of 2 companies reporting payments in 2025, $38.53 in all, mostly food and beverage.
Overview
| NPI | 1851895650 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 19, 2018 |
| Last updated in NPPES | Jul 9, 2026 |
| Certified by provider | Jul 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | 4301517468 | MI |
| Internal Medicine | 207R00000X | 4301517468 | MI |
| Allergy & Immunology | 207K00000X | T1065 | TX |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
| Internal Medicine, Allergy & Immunology | 207RA0201X | T1065 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (MI); Practitioner - Allergy/Immunology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 129 |
|---|---|
| Services billed | 499 across 28 procedure codes |
| Paid by Medicare | $22,628 |
Part D prescriptions in 2024
| Prescriptions (claims) | 271 · 415 30-day fills |
|---|---|
| Patients | 80 |
| Total drug cost | $269,125 |
| Generic share | 72% of claims |
Education and affiliations
| Medical school | University of Michigan Medical School |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Regents of the University of MichiganAnn Arbor, MI · 3,346 clinicians
- University of Texas Southwestern Medical Center at DallasDallas, TX · 3,187 clinicians
Hospital affiliations
Industry payments (Open Payments)
- 2025$38.53 · 2 payments from 2 companies
- 2024$643.29 · 7 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Grifols USA, LLC | $21.49 | 1 |
| Astrazeneca Pharmaceuticals LP | $17.04 | 1 |
What the 2025 payments were for
- Food and Beverage$38.53 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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