National Provider Identifier
Julian Ambrus Jr., MD
Julian Ambrus Jr., MD is listed in the NPPES registry with a primary specialty of Allergy & Immunology (Internal Medicine) Physician in Williamsville, NY and a listed phone number of (716) 631-3555.
Source: public NPPES record, last updated April 06, 2020. This profile is informational and is not medical advice, a quality rating, or a provider recommendation.
Profile Overview
- NPI
- 1811919988
- Provider Type
- Individual
- Primary Specialty
- Allergy & Immunology (Internal Medicine) Physician
- Enumeration Date
- July 24, 2006
- Last Updated
- April 06, 2020
Practice Location
- 400 International Dr
- Williamsville, NY 14221-5771
Phone: (716) 631-3555
Specialties
- Allergy & Immunology (Internal Medicine) Physician (207RA0201X)
Browse Similar Providers
See more providers in the Internal Medicine classification in Buffalo, NY.
Open Internal Medicine providers in Buffalo, NY
Open the exact Allergy & Immunology specialty directory in Buffalo, NY
Medicare Part B Activity
Reported 5,973 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 98th percentile for Medicare service volume.
Among the highest-volume peers.
Performs about 16x the peer median number of Medicare services.
Higher than 649 of 665 peers.
- Activity Percentile
- 97.6%
- Rank by Services
- 16 of 665
- Total Services
- 5,973
- Est. Allowed Value
- $108,396.43
- Dataset Year
- 2024
- Drug Code Share
- 80.8%
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.
Drug-related HCPCS codes make up 80.8% of reported Medicare services, so the claim mix is dominated by administered-drug billing lines.
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
- 96365: Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less
598 services | $35,056.23
- 99214: Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
285 services | $31,466.84
- 99215: Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
248 services | $38,291.00
- 99443: Telephone medical discussion with physician, 21-30 minutes
13 services | $1,109.05
Common Drug-Related Codes
- J3480: Injection, potassium chloride, per 2 meq
2,777 services | $305.72
- J3475: Injection, magnesium sulfate, per 500 mg
1,155 services | $667.86
- J7042: 5% dextrose/normal saline (500 ml = 1 unit)
618 services | $769.66
Biography
Julian L. Ambrus Jr., MD, is a Buffalo-area immunologist and rheumatology researcher who serves as a professor in the Department of Medicine at the University at Buffalo Jacobs School of Medicine and Biomedical Sciences. His work has focused on IL-14, immunological memory, autoimmunity, lymphoid malignancies, and early events in Sjogren’s syndrome; UB has highlighted his role as senior author on research identifying novel antibodies for earlier Sjogren’s diagnosis.
Full Record
- NPI
- 1811919988
- Entity Type
- Individual
- Last Name
- Ambrus
- First Name
- Julian
- Name Suffix
- Jr.
- Credential
- MD
- Mailing Street Address
- 400 International Dr
- Mailing City
- Williamsville
- Mailing State
- NY
- Mailing ZIP Code
- 14221-5771
- Mailing Country
- US
- Mailing Phone
- (716) 631-3555
- Mailing Fax
- (716) 631-9525
- Practice Street Address
- 400 International Dr
- Practice City
- Williamsville
- Practice State
- NY
- Practice ZIP Code
- 14221-5771
- Practice Country
- US
- Practice Phone
- (716) 631-3555
- Practice Fax
- (716) 631-9525
- Enumeration Date
- July 24, 2006
- Last Updated
- April 06, 2020
- Sex
- Male
- Sole Proprietor
- No
- Certification Date
- April 06, 2020
- Taxonomies
- Allergy & Immunology (Internal Medicine) Physician (207RA0201X)
- Other Identifiers
- 2805362 (NY, Independent Health), 00010201501 (NY, Excellus Univera), 005244241 (NY, Health Now), 01679881 (NY)