Doctor profile · Federal record

Dr. Ruth Horowitz, MD

Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Timonium, MD

  • NPI 1003811423
  • Accepts Medicare
  • 38 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1 Texas Station CT
Timonium, MD 210938286
(410) 828-7417
fax (410) 828-4695
Mailing address
1 Texas Station CT Suite 300, Suite 300
Timonium, MD 210938286

Credentials & registration

NPPES · NUCC
NPI registered
June 2005 — 21 yrs on file
Profile last updated
May 9, 2025
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
207RE0101X — NUCC code
State license (1)
Maryland #D45811
Medicaid (2)
MD #053771300 · MD #127701400

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1003811423. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
16,884
Distinct HCPCS
10
Medicare allowed
$522,075
HCPCS Description Services Patients Avg allowed
J0897 Injection, denosumab, 1 mg 12,900 139 $23
99214 Established patient office or other outpatient visit, 30-39 minutes 1,083 703 $134
82962 Blood glucose (sugar) test performed by hand-held instrument 652 324 $3
83036 Hemoglobin a1c level 630 317 $9
36415 Insertion of needle into vein for collection of blood sample 580 426 $8
77080 Dxa bone density measurement of hip, pelvis, spine 301 299 $41
96372 Injection of drug or substance under skin or into muscle 215 139 $15
76536 Ultrasound scan of head and neck soft tissue 162 151 $119
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 155 77 $34
99215 Established patient office or other outpatient visit, 40-54 minutes 80 68 $179

In context: peer comparison

Among 5 peers in this city , average services per provider: 882. This provider delivers 19× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,193
Transactions
44
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
SANOFI-AVENTIS U.S. LLC 5 $121.27
Radius Health, Inc. 4 $111.76
Amgen Inc. 5 $110.87
Novo Nordisk Inc 5 $99.10
BETA BIONICS, INC. 3 $81.84
Corcept Therapeutics 4 $71.11
Insulet Corporation 3 $67.48
Averitas Pharma Inc. 2 $50.39
Lilly USA, LLC 2 $47.77
CeQur Corporation 1 $44.18
Alexion Pharmaceuticals, Inc. 2 $41.60
Tandem Diabetes Care, Inc. 2 $40.81
Boehringer Ingelheim Pharmaceuticals, Inc. 2 $34.57
Medtronic, Inc. 2 $31.56
ABBVIE INC. 2 $28.80

By nature of payment

Food and Beverage
$1,193

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,616
Patients
488
Total drug cost
$562,242
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 338 102 $5,593
Synthroid (Levothyroxine Sodium) Brand 251 70 $30,904
Alendronate Sodium Generic 226 68 $2,969
Metformin Hcl Generic 117 36 $1,585
Metformin Hcl Er (Metformin Hcl) Brand 106 32 $2,154
Jardiance (Empagliflozin) Brand 93 20 $109,932
Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) Brand 70 25 $80,060
Trulicity (Dulaglutide) Brand 68 20 $151,359
Glimepiride Generic 59 20 $1,318
Rosuvastatin Calcium Generic 55 18 $1,586

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ruth Horowitz's medical specialty?
Dr. Ruth Horowitz practices Endocrinology, Diabetes & Metabolism Physician in Timonium, MD.
Where does Dr. Ruth Horowitz practice?
Dr. Ruth Horowitz practices at 1 Texas Station CT, Timonium, MD 210938286. Office phone: 4108287417.
What is Dr. Ruth Horowitz's NPI?
Dr. Ruth Horowitz's National Provider Identifier (NPI) is 1003811423, issued by NPPES.
Does Dr. Ruth Horowitz accept Medicare assignment?
Yes. Dr. Ruth Horowitz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ruth Horowitz commonly perform?
Top Medicare-reported procedures in 2023: Injection, denosumab, 1 mg (HCPCS J0897); Established patient office or other outpatient visit (HCPCS 99214); Blood glucose (sugar) test performed by hand-held instrument (HCPCS 82962). Source: CMS Medicare Physician & Other Practitioners file.