National Provider Identifier
Paul Edward Dejac, MD
Paul Edward Dejac, MD is listed in the NPPES registry with a primary specialty of Internal Medicine Physician in Buffalo, NY and a listed phone number of (716) 883-0515.
Source: public NPPES record, last updated March 19, 2026. This profile is informational and is not medical advice, a quality rating, or a provider recommendation.
Profile Overview
- NPI
- 1457796997
- Provider Type
- Individual
- Primary Specialty
- Internal Medicine Physician
- Enumeration Date
- May 09, 2013
- Last Updated
- March 19, 2026
Practice Location
- 656 Elmwood Ave
- Buffalo, NY 14222-1836
Phone: (716) 883-0515
Specialties
- Internal Medicine Physician (207R00000X)
Browse Similar Providers
See more providers in the Internal Medicine classification in Buffalo, NY.
Medicare Part B Activity
Reported 32 Medicare fee-for-service service lines in 2024.
Peer comparison
Compared to Internal Medicine providers in the Buffalo, NY metro area.
This provider is in the 4th percentile for Medicare service volume.
Lower volume than many peers.
Performs 91% fewer Medicare services than the peer median.
Higher than 29 of 665 peers.
- Activity Percentile
- 4.4%
- Rank by Services
- 634 of 665
- Total Services
- 32
- Est. Allowed Value
- $2,310.86
- Dataset Year
- 2024
- Drug Code Share
- 0.0%
Estimated allowed value reflects Medicare fee-for-service allowed amounts only. It does not include Medicare Advantage, commercial insurance, cash-pay services, or employment compensation.
Peers are grouped by the broader Internal Medicine classification rather than the exact subspecialty label shown elsewhere on the page.
Percentile distribution
Each bar represents a 10-point percentile band of peers by total Medicare services for Internal Medicine across the Buffalo, NY metro area. Taller bars indicate higher service-volume bands. Highlighted bar marks this provider's percentile band.
Observed service range: 11 to 94,260 total Medicare services.
Top Clinical Services
- 99214: Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
17 services | $2,076.01
- G2211: Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
15 services | $234.85
Biography
Paul E. DeJac, MD, is a board-certified internist with Medical Care of Western New York in Buffalo. He earned his medical degree and completed internal medicine residency training at the University at Buffalo’s Jacobs School of Medicine and Biomedical Sciences, where he is listed as an assistant professor in the Department of Medicine; before joining Medical Care of WNY, he spent six years at Roswell Park Comprehensive Cancer Center, including service as chief of the Hospitalist Division of Internal Medicine.
Full Record
- NPI
- 1457796997
- Entity Type
- Individual
- Last Name
- Dejac
- First Name
- Paul
- Middle Name
- Edward
- Credential
- MD
- Mailing Street Address
- 656 Elmwood Ave
- Mailing City
- Buffalo
- Mailing State
- NY
- Mailing ZIP Code
- 14222-1836
- Mailing Country
- US
- Mailing Phone
- (716) 845-2300
- Mailing Fax
- (716) 845-4693
- Practice Street Address
- 656 Elmwood Ave
- Practice City
- Buffalo
- Practice State
- NY
- Practice ZIP Code
- 14222-1836
- Practice Country
- US
- Practice Phone
- (716) 883-0515
- Practice Fax
- (716) 883-8764
- Enumeration Date
- May 09, 2013
- Last Updated
- March 19, 2026
- Sex
- Male
- Sole Proprietor
- No
- Certification Date
- March 19, 2026
- Taxonomies
- Internal Medicine Physician (207R00000X)