Doctor profile · Federal record

Dr. Daniel Grimmer, MD

Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Blood Banking & Transfusion Medicine Physician · Houston, TX

  • NPI 1427010610
  • Accepts Medicare
  • 39 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
One Baylor Plaze, Suite 286A, Baylor College of Medicine, Department of Pathology
Houston, TX 77030
(713) 785-8357
Mailing address
Po Box 4677
Houston, TX 772104677

Credentials & registration

NPPES · NUCC
NPI registered
April 2006 — 20 yrs on file
Profile last updated
April 3, 2012
Year of graduation
1987 — 39 yrs since
Specialty taxonomy
207ZP0102X — NUCC code
State license (1)
Texas #J2588
Medicaid (2)
TX #117445002 · TX #117445004

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1427010610. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
704
Distinct HCPCS
9
Medicare allowed
$24,516
HCPCS Description Services Patients Avg allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity 342 155 $35
88341 Special stained specimen slides to examine tissue, each additional procedure 105 24 $27
88108 Cell examination of specimen, concentration technique 65 55 $21
88342 Special stained specimen slides to examine tissue, initial procedure 44 36 $33
88307 Pathology examination of tissue using a microscope, moderately high complexity 40 28 $78
88304 Pathology examination of tissue using a microscope, moderately low complexity 32 30 $11
88311 Preparation of tissue for examination by removing any calcium present 28 24 $12
88173 Evaluation of fine needle aspirate with interpretation and report 27 21 $67
88331 Pathology examination of specimen during surgery, first tissue block 21 12 $59

In context: peer comparison

Among 115 peers in this city , average services per provider: 169. This provider delivers 4.2× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Daniel Grimmer's medical specialty?
Dr. Daniel Grimmer practices Anatomic Pathology & Clinical Pathology Physician in Houston, TX.
Where does Dr. Daniel Grimmer practice?
Dr. Daniel Grimmer practices at One Baylor Plaze, Suite 286A, Houston, TX 77030. Office phone: 7137858357.
What is Dr. Daniel Grimmer's NPI?
Dr. Daniel Grimmer's National Provider Identifier (NPI) is 1427010610, issued by NPPES.
Does Dr. Daniel Grimmer accept Medicare assignment?
Yes. Dr. Daniel Grimmer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Daniel Grimmer commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341); Cell examination of specimen, concentration technique (HCPCS 88108). Source: CMS Medicare Physician & Other Practitioners file.