Dr. Peter Terhaar, DO
- Medicare services, 2019
- 839
- Part D claims, 2020
- 14
- Industry payments
- $22
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 2626 W State St Ste 700 Suite 700, Olean, NY 14760-1858
- Practice phone
- Call (716) 373-1590
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Allegheny Regional Bone & Joint Surgery
Physician office · Olean, New York
Find Dr. Terhaar's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Peter Terhaar is an orthopedic surgeon in Olean, New York
Dr. Terhaar practices at Allegheny Regional Bone & Joint Surgery in Olean, New York.
Dr. Terhaar's NPI, 1184622821, was assigned on July 7, 2005. Dr. Terhaar graduated from Kansas City University of Medicine and Biosciences College of Osteopathic Medicine in 1984. Dr. Terhaar holds New York license 169205.
- NPI
- 1184622821NPI Registry (opens in a new tab)
- NPI enumeration date
- July 7, 2005
- NPI status
- Active
- Practice phone
- (716) 373-1590
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Peter Terhaar practices at Allegheny Regional Bone & Joint Surgery in Olean, New York
Dr. Terhaar's primary practice is Allegheny Regional Bone & Joint Surgery, at 2626 W State St Ste 700 Suite 700, Olean, NY 14760-1858. The practice phone is (716) 373-1590.
- Allegheny Regional Bone & Joint Surgery2626 W State St Ste 700 Suite 700, Olean, NY 14760-1858Phone(716) 373-1590
Source: Dmand AI Affiliation Data
Dr. Peter Terhaar is affiliated with 1 site of care and 1 medical group
Dr. Terhaar's primary practice is Allegheny Regional Bone & Joint Surgery in Olean, New York. The medical group on file is Omega Family Medicine.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Peter Terhaar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Terhaar practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Allegheny Regional Bone & Joint Surgery | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Peter Terhaar is one of 1,151 orthopedic surgeons in New York
Orthopaedic surgery is Dr. Terhaar's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Terhaar is licensed in New York.
Specialties and state licenses
- Orthopaedic surgery, New YorkPrimary
Orthopedic surgeons near Dr. Terhaar
Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Peter Terhaar billed Medicare for 839 services in 2019
CMS data shows 839 Medicare services from Dr. Terhaar across 12 procedure codes in 2019. Medicare paid $38,067 for them.
Dr. Terhaar's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 4612019: 4219%
- Drugs given in the office
- 2018: 1322019: 17734%
- Surgery
- 2018: 1452019: 1366%
- Imaging
- 2018: 1552019: 10532%
Where Dr. Terhaar's Medicare services took place, 2019
- In an office82598%
- In a facility142%
Dr. Terhaar compared with the New York median for orthopedic surgeons, 2019
- Dr. Terhaar
- New York median
- Medicare services
- 839vs 72616% above
- Part D claims
- 14vs 7381% below
Medians across 1,081 orthopedic surgeons in New York with Dmand AI profiles that report each measure.
Dr. Terhaar's most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Terhaar?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Terhaar and other orthopedic surgeons in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter Terhaar's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Terhaar's median patient age at 62, with 67% women.
Dr. Terhaar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. Peter Terhaar wrote 14 Medicare Part D claims in 2020
In 2020, Dr. Terhaar wrote 14 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $46 in total drug cost. In 2019, CMS named 157 claims across 3 drugs.
Dr. Terhaar's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 1572020: 1491%
Drugs named by CMS: 1 in 2020, 3 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Peter Terhaar received $22 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Terhaar from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $22.
Companies that paid Dr. Terhaar the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Peter Terhaar graduated from Kansas City University of Medicine and Biosciences College of Osteopathic Medicine
Dr. Terhaar graduated from Kansas City University of Medicine and Biosciences College of Osteopathic Medicine in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Peter Terhaar's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Peter Terhaar
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Peter Terhaar's NPI number?
Dr. Peter Terhaar's NPI number is 1184622821. It was assigned on July 7, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter Terhaar?
Dr. Peter Terhaar is an orthopedic surgeon in Olean, New York. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Peter Terhaar practice?
Dr. Terhaar practices at 2626 W State St Ste 700 Suite 700, Olean, NY 14760-1858. Dr. Terhaar's primary practice is Allegheny Regional Bone & Joint Surgery in Olean, New York.
What is Dr. Peter Terhaar's office phone number?
The practice phone on file for Dr. Terhaar is (716) 373-1590.
What is Dr. Peter Terhaar's medical license number?
Dr. Terhaar holds New York license 169205.
What medical group is Dr. Peter Terhaar part of?
Dr. Terhaar is linked to Omega Family Medicine.
Does Dr. Peter Terhaar accept Medicare?
Yes. CMS data shows Dr. Terhaar billed Medicare for 839 services in 2019.
What services does Dr. Peter Terhaar bill to Medicare?
In 2019, Dr. Terhaar's most billed Medicare services were office visit, established patient (99213), injected or infused drug (J1030) and surgery: bones and joints (20610).
Where did Dr. Peter Terhaar go to medical school?
Dr. Terhaar graduated from Kansas City University of Medicine and Biosciences College of Osteopathic Medicine in 1984.
What drugs does Dr. Peter Terhaar prescribe most?
In 2020 Medicare Part D data, Dr. Terhaar's most prescribed drugs by claims were Meloxicam.
Has Dr. Peter Terhaar received payments from drug or device companies?
CMS Open Payments shows $22 in general payments to Dr. Terhaar from 1 company from 2018 to 2018. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. Peter Terhaar been practicing?
Dr. Terhaar graduated from medical school in 1984, 42 years ago.
Selling to orthopaedic surgery practices?
See orthopedic surgeons in New York by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card