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 Allergy & Immunology providers in Buffalo, NY.
Medicare Part B Activity
Reported 5,528 Medicare fee-for-service service lines in 2023.
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 15x 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
- 5,528
- Est. Allowed Value
- $105,560.63
- Dataset Year
- 2023
- Drug Code Share
- 80.3%
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 80.3% 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 91,321 total Medicare services.
Top Clinical Services
- 96365: Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less
558 services | $33,751.55
- 99214: Established patient office or other outpatient visit, 30-39 minutes
302 services | $35,232.30
- 99215: Established patient office or other outpatient visit, 40-54 minutes
212 services | $34,087.73
- 36415: Insertion of needle into vein for collection of blood sample
17 services | $142.80
Common Drug-Related Codes
- J3480: Injection, potassium chloride, per 2 meq
2,624 services | $298.26
- J3475: Injection, magnesium sulfate, per 500 mg
979 services | $763.46
- J7042: 5% dextrose/normal saline (500 ml = 1 unit)
608 services | $702.83
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
- updated_by_file
- npidata_pfile_20050523-20260308.csv
- Taxonomies
- Allergy & Immunology (Internal Medicine) Physician (207RA0201X)
- Other Identifiers
- 2805362 (NY, Independent Health), 00010201501 (NY, Excellus Univera), 005244241 (NY, Health Now), 01679881 (NY)