National Provider Identifier
Robert S Armstrong, M.D.
Robert S Armstrong, M.D. is listed in the NPPES registry with a primary specialty of Surgery Physician in West Seneca, NY and a listed phone number of (716) 677-5500.
Source: public NPPES record, last updated May 05, 2026. This profile is informational and is not medical advice, a quality rating, or a provider recommendation.
Profile Overview
- NPI
- 1003058520
- Provider Type
- Individual
- Primary Specialty
- Surgery Physician
- Enumeration Date
- March 30, 2009
- Last Updated
- May 05, 2026
Practice Location
- 550 Orchard Park RD Ste A103
- West Seneca, NY 14224-2654
Phone: (716) 677-5500
Specialties
- Surgery Physician (208600000X)
Browse Similar Providers
See more providers in the Surgery classification in Buffalo, NY.
Medicare Part B Activity
Reported 253 Medicare fee-for-service service lines in 2024.
Peer comparison
Compared to Surgery providers in the Buffalo, NY metro area.
This provider is in the 61st percentile for Medicare service volume.
Around the middle of the peer group.
Performs 81% more Medicare services than the peer median.
Higher than 55 of 90 peers.
- Activity Percentile
- 61.1%
- Rank by Services
- 35 of 90
- Total Services
- 253
- Est. Allowed Value
- $27,644.09
- 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 Surgery 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 Surgery across the Buffalo, NY metro area. Taller bars indicate higher service-volume bands. Highlighted bar marks this provider's percentile band.
Observed service range: 12 to 4,437 total Medicare services.
Top Clinical Services
- 99222: Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
58 services | $7,000.13
- 99231: Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes
56 services | $2,604.16
- 99203: New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
27 services | $2,859.62
- 99204: New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
26 services | $4,119.35
- 99232: Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
24 services | $1,785.33
Biography
Robert S. Armstrong, MD, FACS, is a board-certified general surgeon in West Seneca whose practice emphasizes minimally invasive surgery and complex hernia repair, including abdominal wall reconstruction and component separation. He completed his general surgery residency at University Hospitals Case Medical Center in Cleveland after earning his MD from the Boonshoft School of Medicine at Wright State University, and his profile notes additional training with leaders in hernia repair in Cleveland. He is affiliated with Mercy Hospital of Buffalo and Kenmore Mercy Hospital and also serves as president of the Erie County Medical Society.
Full Record
- NPI
- 1003058520
- Entity Type
- Individual
- Last Name
- Armstrong
- First Name
- Robert
- Middle Name
- S
- Credential
- M.D.
- Mailing Street Address
- 550 Orchard Park RD Ste A103
- Mailing City
- West Seneca
- Mailing State
- NY
- Mailing ZIP Code
- 14224-2654
- Mailing Country
- US
- Mailing Phone
- (716) 677-5500
- Mailing Fax
- (716) 677-5513
- Practice Street Address
- 550 Orchard Park RD Ste A103
- Practice City
- West Seneca
- Practice State
- NY
- Practice ZIP Code
- 14224-2654
- Practice Country
- US
- Practice Phone
- (716) 677-5500
- Practice Fax
- (716) 677-5008
- Enumeration Date
- March 30, 2009
- Last Updated
- May 05, 2026
- Sex
- Male
- Sole Proprietor
- No
- Certification Date
- May 05, 2026
- Taxonomies
- Surgery Physician (208600000X)
- Other Identifiers
- 1003058520 (NY, NPI)