Doctor profile · Federal record

Dr. Lauren Merz, MD

Hematology (Internal Medicine) Physician (CMS: Hematology) · Internal Medicine Physician · Physical Medicine & Rehabilitation Physician · Ann Arbor, MI

  • NPI 1073176939
  • Accepts Medicare
  • 7 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
1500 E Medical Center Dr
Ann Arbor, MI 481095000
(734) 936-4000
Additional location
55 Fruit St
Boston, MA 021142621
(617) 726-2000
Additional location
75 Francis St
Boston, MA 021156110
(617) 732-5500
Mailing address
3621 S State St
Ann Arbor, MI 481081633

Credentials & registration

NPPES · NUCC
NPI registered
April 2019 — 7 yrs on file
Profile last updated
July 16, 2025
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
207RH0000X — NUCC code
State licenses (2)
Michigan #4301514172 · Massachusetts #280048

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1073176939. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$3,270
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Janssen Research & Development, LLC 1 $3,270.00

By nature of payment

Consulting Fee
$3,270

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Lauren Merz's medical specialty?
Dr. Lauren Merz practices Hematology (Internal Medicine) Physician in Ann Arbor, MI.
Where does Dr. Lauren Merz practice?
Dr. Lauren Merz practices at 1500 E Medical Center Dr, Ann Arbor, MI 481095000. Office phone: 7349364000.
What is Dr. Lauren Merz's NPI?
Dr. Lauren Merz's National Provider Identifier (NPI) is 1073176939, issued by NPPES.
Does Dr. Lauren Merz accept Medicare assignment?
Yes. Dr. Lauren Merz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.