Doctor profile · Federal record
Dr. Warren Ross, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Ellicott City, MD
- NPI 1770568891
- Accepts Medicare
- 55 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4801 Dorsey Hall Dr, Suite 201
Ellicott City, MD 210427766
(410) 997-7660
fax (410) 997-7665
Credentials & registration
- NPI registered
- December 2005 — 21 yrs on file
- Profile last updated
- December 31, 2009
- Year of graduation
- 1971 — 55 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Maryland #D0017821
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1770568891. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
24,118
Distinct HCPCS
10
Medicare allowed
$617,742
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,622 | 715 | $94 | |
36415 |
Insertion of needle into vein for collection of blood sample | 1,275 | 641 | $8 | |
80053 |
Blood test, comprehensive group of blood chemicals | 1,179 | 629 | $10 | |
86140 |
Measurement c-reactive protein for detection of infection or inflammation | 1,131 | 611 | $5 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 1,122 | 616 | $8 | |
82172 |
Apolipoprotein level | 1,009 | 571 | $21 | |
82977 |
Glutamyltransferase (liver enzyme) level | 1,002 | 578 | $7 | |
83540 |
Iron level | 991 | 579 | $6 | |
83550 |
Iron binding capacity | 991 | 579 | $9 | |
80061 |
Blood test, lipids (cholesterol and triglycerides) | 986 | 586 | $13 |
In context: peer comparison
Among 10 peers in Ellicott City Internal Medicine Physician, average services per provider: 212. This provider delivers 114× the peer median.Open Payments
Industry payments received
All-time total
$1,197
Transactions
43
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen INC. | 4 | $163.98 | |
| Lilly USA, LLC | 6 | $142.00 | |
| Harmony Biosciences LLC | 3 | $91.14 | |
| Bayer Healthcare Pharmaceuticals INC. | 2 | $88.21 | |
| Merck Sharp & Dohme LLC | 3 | $86.29 | |
| Astellas Pharma US INC | 3 | $72.75 | |
| AstraZeneca Pharmaceuticals Lp | 3 | $68.20 | |
| Pfizer INC. | 3 | $58.43 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 3 | $52.24 | |
| Novartis Pharmaceuticals Corporation | 2 | $47.23 | |
| Novo Nordisk INC | 3 | $45.83 | |
| Mirum Pharmaceuticals, INC. | 2 | $39.87 | |
| Harmony Biosciences LLC | 2 | $39.63 | |
| Antares Pharma, INC. | 2 | $38.34 | |
| Tolmar, INC. | 2 | $33.32 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,673
Patients
824
Total drug cost
$165,386
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Rosuvastatin Calcium | Generic | 480 | 154 | $19,729 |
| Amlodipine Besylate | Generic | 405 | 122 | $3,993 |
| Levothyroxine Sodium | Generic | 266 | 81 | $4,413 |
| Atorvastatin Calcium | Generic | 236 | 75 | $3,782 |
| Olmesartan Medoxomil | Generic | 231 | 73 | $13,002 |
| Telmisartan | Generic | 149 | 46 | $7,088 |
| Indapamide | Generic | 143 | 45 | $2,158 |
| Metformin Hcl ER (Metformin Hcl) | Brand | 111 | 35 | $1,316 |
| Valsartan | Generic | 108 | 37 | $5,374 |
| Tamsulosin Hcl | Generic | 103 | 30 | $2,341 |
Frequently asked questions
What is Dr. Warren Ross's medical specialty?
Dr. Warren Ross practices Internal Medicine Physician in Ellicott City, MD.
Where does Dr. Warren Ross practice?
Dr. Warren Ross practices at 4801 Dorsey Hall Dr, Ellicott City, MD 210427766. Office phone: 4109977660.
What is Dr. Warren Ross's NPI?
Dr. Warren Ross's National Provider Identifier (NPI) is 1770568891, issued by NPPES.
Does Dr. Warren Ross accept Medicare assignment?
Yes. Dr. Warren Ross accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Warren Ross commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Blood test, comprehensive group of blood chemicals (HCPCS 80053). Source: CMS Medicare Physician & Other Practitioners file.