Doctor profile · Federal record
Dr. Diana Whitehead, MD
Gastroenterology Physician (CMS: Gastroenterology) · Gastroenterology Physician · Internal Medicine Physician · Internal Medicine Physician · Pikesville, MD
- NPI 1356661169
- Accepts Medicare
- 16 yrs in practice
- Licensed in 4 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
1838 Greene Tree RD
Pikesville, MD 212086391
(410) 876-8332 - Additional location
-
4150 Barrett Blvd Ste 200
Ephrata, PA 175228979
(717) 738-5648 - Additional location
-
1 Medical Center Dr, Dhmc Department of Gastroenterology
Lebanon, NH 037561000
(603) 650-5218
fax (603) 650-5225 - Mailing address
-
1838 Greene Tree RD Ste 400
Pikesville, MD 212087103
Credentials & registration
- NPI registered
- June 2010 — 16 yrs on file
- Profile last updated
- November 7, 2025
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (4)
- Maryland #D0081415 · Pennsylvania #MD492456C · Rhode Island #LP01946 · New Hampshire #16144
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1356661169. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
730
Distinct HCPCS
10
Medicare allowed
$108,899
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 170 | 130 | $133 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 80 | 79 | $185 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 67 | 66 | $100 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 65 | 65 | $136 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 53 | 50 | $95 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 50 | 49 | $264 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 48 | 48 | $93 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 41 | 41 | $176 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 40 | 40 | $193 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 24 | 24 | $139 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 48. This provider delivers 15× the peer median.Open Payments
Industry payments received
All-time total
$78,263
Transactions
145
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Biotech, Inc. | 62 | $64,748.72 | |
| ABBVIE INC. | 43 | $12,558.64 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 6 | $138.51 | |
| Lilly USA, LLC | 5 | $130.39 | |
| PFIZER INC. | 6 | $109.54 | |
| Daiichi Sankyo Inc. | 4 | $102.40 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 4 | $87.31 | |
| Celgene Corporation | 3 | $63.25 | |
| Regeneron Healthcare Solutions, Inc. | 3 | $58.23 | |
| Janssen Scientific Affairs, LLC | 1 | $55.62 | |
| GENZYME CORPORATION | 2 | $47.12 | |
| QOL Medical, LLC | 2 | $44.90 | |
| Intercept Pharmaceuticals, Inc. | 2 | $42.08 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 1 | $21.25 | |
| Organon Llc | 1 | $18.94 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
717
Patients
194
Total drug cost
$1,098,118
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 165 | 49 | $2,507 |
| Omeprazole | Generic | 95 | 32 | $1,436 |
| Clenpiq (Sod Picosulf/Mag Ox/Citric Ac) | Brand | 81 | 79 | $14,112 |
| Famotidine | Generic | 55 | 21 | $809 |
| Mesalamine | Generic | 43 | 0 | $36,910 |
| Linzess (Linaclotide) | Brand | 39 | 0 | $28,995 |
| Dicyclomine Hcl | Generic | 37 | 13 | $757 |
| Mercaptopurine | Generic | 36 | 0 | $2,124 |
| Sulfasalazine | Generic | 31 | 0 | $856 |
| Esomeprazole Magnesium | Generic | 25 | 0 | $1,154 |
Hospital affiliations
Frequently asked questions
What is Dr. Diana Whitehead's medical specialty?
Dr. Diana Whitehead practices Gastroenterology Physician in Pikesville, MD.
Where does Dr. Diana Whitehead practice?
Dr. Diana Whitehead practices at 1838 Greene Tree RD, Pikesville, MD 212086391. Office phone: 4108768332.
What is Dr. Diana Whitehead's NPI?
Dr. Diana Whitehead's National Provider Identifier (NPI) is 1356661169, issued by NPPES.
Does Dr. Diana Whitehead accept Medicare assignment?
Yes. Dr. Diana Whitehead accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diana Whitehead commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.