National Provider Identifier
Kenneth G Halliwell, M.D.
Kenneth G Halliwell, M.D. is listed in the NPPES registry with a primary specialty of Neurology Physician in Williamsville, NY and a listed phone number of (716) 630-1122.
Source: public NPPES record, last updated February 28, 2022. This profile is informational and is not medical advice, a quality rating, or a provider recommendation.
Profile Overview
- NPI
- 1639338429
- Provider Type
- Individual
- Primary Specialty
- Neurology Physician
- Enumeration Date
- June 05, 2008
- Last Updated
- February 28, 2022
Practice Location
- 325 Essjay RD
- Williamsville, NY 14221-8243
Phone: (716) 630-1122
Mailing Address
- 425 Essjay RD Ste 170
- Williamsville, NY 14221-8235
Specialties
- Neurology Physician (2084N0400X)
- Sleep Medicine (Psychiatry & Neurology) Physician (2084S0012X)
Endpoints
- production@direct.buffalomedicalgroup.com
Direct Messaging Address | Direct | Williamsville, NY 14221
Browse Similar Providers
See more Neurology providers in Buffalo, NY.
Medicare Part B Activity
Reported 296 Medicare fee-for-service service lines in 2023.
Peer comparison
Compared to Psychiatry & Neurology providers in the Buffalo, NY metro area.
This provider is in the 58th percentile for Medicare service volume.
Around the middle of the peer group.
Performs 35% more Medicare services than the peer median.
Higher than 76 of 132 peers.
- Activity Percentile
- 57.6%
- Rank by Services
- 56 of 132
- Total Services
- 296
- Est. Allowed Value
- $69,920.09
- 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 Psychiatry & Neurology 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 Psychiatry & Neurology 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 131,635 total Medicare services.
Top Clinical Services
- 99214: Established patient office or other outpatient visit, 30-39 minutes
74 services | $8,911.92
- 99213: Established patient office or other outpatient visit, 20-29 minutes
71 services | $6,172.93
- 95806: Sleep study including heart rate, breathing, airflow, and effort
46 services | $3,871.48
- 95811: Sleep study in sleep lab with continuous airway pressure (6 years or older)
44 services | $26,175.58
- 95810: Sleep study in sleep lab (6 years or older)
37 services | $20,971.95
Full Record
- NPI
- 1639338429
- Entity Type
- Individual
- Last Name
- Halliwell
- First Name
- Kenneth
- Middle Name
- G
- Name Prefix
- Dr.
- Credential
- M.D.
- Mailing Street Address
- 425 Essjay RD Ste 170
- Mailing City
- Williamsville
- Mailing State
- NY
- Mailing ZIP Code
- 14221-8235
- Mailing Country
- US
- Mailing Phone
- (716) 630-1219
- Mailing Fax
- (716) 817-1726
- Practice Street Address
- 325 Essjay RD
- Practice City
- Williamsville
- Practice State
- NY
- Practice ZIP Code
- 14221-8243
- Practice Country
- US
- Practice Phone
- (716) 630-1122
- Practice Fax
- (716) 250-5924
- Enumeration Date
- June 05, 2008
- Last Updated
- February 28, 2022
- Sex
- Male
- Sole Proprietor
- Yes
- Certification Date
- February 28, 2022
- updated_by_file
- npidata_pfile_20050523-20260308.csv
- Taxonomies
- Neurology Physician (2084N0400X), Sleep Medicine (Psychiatry & Neurology) Physician (2084S0012X)