National Provider Identifier
Marielle Ferstenberg-Osypian, D.O.
Marielle Ferstenberg-Osypian, D.O. is listed in the NPPES registry with a primary specialty of Surgery Physician in Williamsville, NY and a listed phone number of (716) 626-6300.
Source: public NPPES record, last updated January 14, 2020. This profile is informational and is not medical advice, a quality rating, or a provider recommendation.
Profile Overview
- NPI
- 1922445220
- Provider Type
- Individual
- Primary Specialty
- Surgery Physician
- Enumeration Date
- May 28, 2013
- Last Updated
- January 14, 2020
Practice Location
- 55 Spindrift Dr
- Williamsville, NY 14221-7800
Phone: (716) 626-6300
Mailing Address
- 203 Birch Dr
- Manhasset Hills, NY 11040-2346
Specialties
- Surgery Physician (208600000X)
Browse Similar Providers
See more Surgery providers in Buffalo, NY.
Medicare Part B Activity
Reported 58 Medicare fee-for-service service lines in 2023.
Peer comparison
Compared to Surgery providers in the Buffalo, NY metro area.
This provider is in the 20th percentile for Medicare service volume.
Lower volume than many peers.
Performs 72% fewer Medicare services than the peer median.
Higher than 19 of 95 peers.
- Activity Percentile
- 20.0%
- Rank by Services
- 76 of 95
- Total Services
- 58
- Est. Allowed Value
- $6,824.89
- Dataset Year
- 2023
- 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: 11 to 6,423 total Medicare services.
Top Clinical Services
- 99214: Established patient office or other outpatient visit, 30-39 minutes
29 services | $3,462.16
- 99205: New patient office or other outpatient visit, 60-74 minutes
15 services | $3,157.77
- 76098: X-ray of surgical specimen
14 services | $204.96
Biography
Dr. Marielle Ferstenberg-Osyipian is a breast surgeon with Windsong, where her background includes medical training at New York College of Osteopathic Medicine, residency at NYU Medical Center in Brooklyn, and a fellowship in breast surgical oncology at Allegheny Health Network; she is also board certified by the American Board of Surgery. At Windsong Breast Care, she practices breast care and surgical oncology and operates at Sisters of Charity Hospital and Millard Fillmore Suburban Hospital. A distinguishing part of her local professional profile is her leadership role with the Windsong Cares Foundation, where she was elected vice-president in 2024.
Full Record
- NPI
- 1922445220
- Entity Type
- Individual
- Last Name
- Ferstenberg-Osypian
- First Name
- Marielle
- Credential
- D.O.
- Mailing Street Address
- 203 Birch Dr
- Mailing City
- Manhasset Hills
- Mailing State
- NY
- Mailing ZIP Code
- 11040-2346
- Mailing Country
- US
- Practice Street Address
- 55 Spindrift Dr
- Practice City
- Williamsville
- Practice State
- NY
- Practice ZIP Code
- 14221-7800
- Practice Country
- US
- Practice Phone
- (716) 626-6300
- Enumeration Date
- May 28, 2013
- Last Updated
- January 14, 2020
- Sex
- Female
- Sole Proprietor
- Yes
- Certification Date
- January 14, 2020
- updated_by_file
- npidata_pfile_20050523-20260308.csv
- Taxonomies
- Surgery Physician (208600000X)