Diana Alexander Whitehead, MD
Gastroenterology · Internal Medicine (CMS) · Pikesville, MD
At a glance
1838 Greene Tree Rd, Pikesville, MD 21208-6391
Published activity: Colonoscopy · Upper gastrointestinal (GI) endoscopy for acid reflux. View counts and coverage
NPPES record updated Nov 7, 2025. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
1838 Greene Tree RdPikesville, MD 21208-6391
Additional reported practice locations
1 Medical Center DrDhmc Department Of Gastroenterology
Lebanon, NH 037561000
Phone: 6036505218
Fax: 6036505225 4150 Barrett Blvd Ste 200
Ephrata, PA 175228979
Phone: 7177385648
Education & affiliations
- Medical / professional school
- State University Of Ny Upstate Medical University
- Graduation year
- 2010
- CMS specialties
- Gastroenterology · Internal Medicine
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
Reported hospital affiliations
- Carroll Hospital Center Westminster, MD
- Exeter Hospital Inc Exeter, NH
- Greater Baltimore Medical Center Baltimore, MD
- Northwest Hospital Center Randallstown, MD
- Wellspan Evangelical Community Hospital Lewisburg, PA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Colonoscopy | 177 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 127 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Services other than consulting | $80,959.86 |
| Travel and lodging | $12,474.35 |
| Consulting fee | $6,750.00 |
| Food and beverage | $3,185.34 |
| Education | $9.24 |
Reporting companies
| Company | Amount |
|---|---|
| JANSSEN BIOTECH, INC. | $98,425.68 |
| ABBVIE INC. | $4,345.40 |
| TAKEDA PHARMACEUTICALS U.S.A., INC. | $115.10 |
| ARDELYX, INC. | $90.04 |
| GENZYME CORPORATION | $75.62 |
| SALIX PHARMACEUTICALS, A DIVISION OF BAUSCH HEALTH US, LLC | $71.27 |
| PFIZER INC. | $70.86 |
| MADRIGAL PHARMACEUTICALS | $50.09 |
| Other reporting companies | $134.73 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Gastroenterology · Internal Medicine (CMS)
- Taxonomy code
- 207RG0100X
- Enumeration date
- Jun 3, 2010
- Record updated
- Nov 7, 2025
More registry details
- Provider type
- Individual · Type 1
- Other reported name
- DIANA-FRANCES COFFIE
- Reported credentials
- MD
Reported taxonomies and licenses
207RG0100X
License reported: MD492456C PA
207R00000X
License reported: LP01946 RI
207R00000X
License reported: 16144 NH
207RG0100X · Primary
License reported: D0081415 MD
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
1838 Greene Tree RdPikesville, MD 21208-6391
- Phone
- (410) 876-8332
Mailing address
1838 GREENE TREE RD STE 400PIKESVILLE, MD 212087103
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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