Doctor profile · Federal record

Dr. Jacob Armstrong, M.D.

Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Hematology (Pathology) Physician · Anatomic Pathology & Clinical Pathology Physician · Anatomic Pathology & Clinical Pathology Physician · Student in an Organized Health Care Education/Training Program · Houston, TX

  • NPI 1629455886
  • Accepts Medicare
  • 11 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
6431 Fannin Street
Houston, TX 770301501
(713) 704-4000
fax (713) 704-2658
Additional location
6431 Fannin St, Suite Msb 2.136
Houston, TX 770301501
(713) 500-4472
fax (713) 500-0712

Credentials & registration

NPPES · NUCC
NPI registered
April 2015 — 11 yrs on file
Profile last updated
September 19, 2022
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207ZP0102X — NUCC code
State licenses (3)
Texas #SS2720 · Texas #S2720 · Louisiana #327748

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1629455886. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
639
Distinct HCPCS
10
Medicare allowed
$19,167
HCPCS Description Services Patients Avg allowed
85060 Blood smear interpretation by physician with written report 172 148 $24
88313 Special stained specimen slides to examine tissue including interpretation and report 96 26 $12
88341 Special stained specimen slides to examine tissue, each additional procedure 84 20 $28
88305 Pathology examination of tissue using a microscope, intermediate complexity 82 35 $37
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers 43 33 $84
88311 Preparation of tissue for examination by removing any calcium present 29 24 $12
88342 Special stained specimen slides to examine tissue, initial procedure 29 24 $34
85097 Bone marrow, smear interpretation 28 23 $48
88360 Microscopic genetic analysis of tumor, manual 19 14 $41
84165 Protein measurement, serum 18 18 $18

In context: peer comparison

Among 115 peers in Houston Anatomic Pathology & Clinical Pathology Physician, average services per provider: 169. This provider delivers 3.8× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Jacob Armstrong's medical specialty?
Dr. Jacob Armstrong practices Anatomic Pathology & Clinical Pathology Physician in Houston, TX.
Where does Dr. Jacob Armstrong practice?
Dr. Jacob Armstrong practices at 6431 Fannin Street, Houston, TX 770301501. Office phone: 7137044000.
What is Dr. Jacob Armstrong's NPI?
Dr. Jacob Armstrong's National Provider Identifier (NPI) is 1629455886, issued by NPPES.
Does Dr. Jacob Armstrong accept Medicare assignment?
Yes. Dr. Jacob Armstrong accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jacob Armstrong commonly perform?
Top Medicare-reported procedures in 2023: Blood smear interpretation by physician with written report (HCPCS 85060); Special stained specimen slides to examine tissue including interpretation and report (HCPCS 88313); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341). Source: CMS Medicare Physician & Other Practitioners file.