Gary S. Allen, M.D.
Thoracic Surgery (CMS) · Littleton, CO
At a glance
7780 S Broadway Ste 170, Littleton, CO 80122-2633
Published activity: Coronary artery bypass graft (CABG). View counts and coverage
NPPES record updated Dec 10, 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
7780 S Broadway Ste 170Littleton, CO 80122-2633
Additional reported practice locations
1222 S Orange Ave Fl 3Orlando, FL 328061215
Phone: 3218413356
Fax: 3218417799 3310 Waterman Way
Tavares, FL 327785250
Phone: 3523431216
Fax: 3523431582
Education & affiliations
- Medical / professional school
- Albany Medical College Of Union University
- Graduation year
- 1991
- CMS specialties
- Thoracic Surgery
Practice groups
- Florida Hospital Healthcare Partners, Inc
- Florida Hospital Medical Group Inc
- Portercare Adventist Health System
Reported hospital affiliations
- Adventhealth Waterman Tavares, FL
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 |
|---|---|
| Coronary artery bypass graft (CABG) | 34 |
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 |
|---|---|
| Education | $32,000.00 |
| Travel and lodging | $2,871.30 |
| Food and beverage | $2,017.32 |
| Services other than consulting | $800.00 |
Reporting companies
| Company | Amount |
|---|---|
| INTUITIVE SURGICAL, INC. | $36,230.17 |
| EDWARDS LIFESCIENCES CORPORATION | $1,195.95 |
| ABIOMED | $57.32 |
| PACIRA PHARMACEUTICALS INCORPORATED | $47.83 |
| MEDLINE INDUSTRIES LP | $45.86 |
| GLOBUS MEDICAL, INC. | $42.77 |
| GETINGE USA SALES, LLC | $39.69 |
| DAVOL INC. | $29.03 |
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
- Thoracic Surgery (CMS)
- Taxonomy code
- 208G00000X
- Enumeration date
- Jun 27, 2005
- Record updated
- Dec 10, 2025
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
208G00000X · Primary
License reported: ME80476 FL
208G00000X
License reported: DR.0073193 CO
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
7780 S Broadway Ste 170Littleton, CO 80122-2633
- Phone
- (303) 269-2920
- Fax
- (303) 269-2921
Mailing address
7780 S BROADWAY STE 170LITTLETON, CO 801222633
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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