Dr. Nathaniel Lars Graham, MD
- Medicare services, 2023
- 209
- Part D claims, 2024
- 13
- Industry payments
- $525
- State license
- 1
- Year NPI issued
- 2005
- Practice address
- 515 Main St, Olean, NY 14760
- Practice phone
- Call (814) 368-7125
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Graham'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. Nathaniel Lars Graham is a general surgeon in Olean, New York
Dr. Graham practices in Olean, New York.
Dr. Graham's NPI, 1134123060, was assigned on June 9, 2005. Dr. Graham holds Pennsylvania license MD033525E.
- NPI
- 1134123060NPI Registry (opens in a new tab)
- NPI enumeration date
- June 9, 2005
- NPI status
- Active
- Practice phone
- (814) 368-7125
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Nathaniel Lars Graham's practice address is in Olean, New York
Dr. Graham's practice address in the NPI Registry is 515 Main St, Olean, NY 14760, in Cattaraugus County. The practice phone is (814) 368-7125.
- NPI Registry address515 Main St, Olean, NY 14760 · Cattaraugus CountyPhone(814) 368-7125
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Nathaniel Lars Graham's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Graham practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Graham's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nathaniel Lars Graham is one of 1,604 general surgeons in New York
Surgery is Dr. Graham's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Graham is licensed in Pennsylvania.
Specialties and state licenses
- Surgery, PennsylvaniaPrimary
General surgeons near Dr. Graham
Counts of general 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. Nathaniel Lars Graham billed Medicare for 209 services in 2023
CMS data shows 209 Medicare services from Dr. Graham across 7 procedure codes in 2023. Medicare paid $14,693 for them.
Dr. Graham's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 3862023: 15660%
- Surgery
- 2022: 1152023: 3867%
- Other services
- 2022: 02023: 15
Where Dr. Graham's Medicare services took place, 2023
- In an office18388%
- In a facility2612%
Dr. Graham compared with the New York median for general surgeons, 2023
- Dr. Graham
- New York median
- Medicare services
- 209vs 15436% above
- Part D claims
- 208vs 248.7 times
Medians across 1,502 general surgeons in New York with Dmand AI profiles that report each measure.
Dr. Graham's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nathaniel Lars Graham's patients have a median age of 53
Across all payers, Dmand AI patient panel data puts Dr. Graham's median patient age at 53, with 50% women.
Dr. Graham's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Nathaniel Lars Graham wrote 13 Medicare Part D claims in 2024
In 2024, Dr. Graham wrote 13 Medicare Part D claims for 12 patients. 100% of them were for generic drugs. They cover 5 drugs, with $7,190 in total drug cost. In 2022, CMS named 548 claims across 9 drugs.
Dr. Graham's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 5482023: 20862%
Drugs named by CMS: 5 in 2023, 9 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Nathaniel Lars Graham received $525 in industry payments from 2016 to 2025
CMS Open Payments shows 13 general payments to Dr. Graham from 7 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Janssen Pharmaceuticals, Inc paid the most, $221.
General payments to Dr. Graham by program year, 2016 to 2025
General payments to Dr. Graham by kind, 2016 to 2025
- Food and beverage$50797%
- Education$183%
Companies that paid Dr. Graham the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nathaniel Lars Graham'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice 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)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Nathaniel Lars Graham
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. Nathaniel Lars Graham's NPI number?
Dr. Nathaniel Lars Graham's NPI number is 1134123060. It was assigned on June 9, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Nathaniel Lars Graham?
Dr. Nathaniel Lars Graham is a general surgeon in Olean, New York. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Nathaniel Lars Graham practice?
Dr. Graham practices at 515 Main St, Olean, NY 14760.
What is Dr. Nathaniel Lars Graham's office phone number?
The practice phone on file for Dr. Graham is (814) 368-7125.
What is Dr. Nathaniel Lars Graham's medical license number?
Dr. Graham holds Pennsylvania license MD033525E.
Does Dr. Nathaniel Lars Graham accept Medicare?
Yes. CMS data shows Dr. Graham billed Medicare for 209 services in 2023.
What services does Dr. Nathaniel Lars Graham bill to Medicare?
In 2023, Dr. Graham's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and surgery: skin and soft tissue (17110).
What drugs does Dr. Nathaniel Lars Graham prescribe most?
In 2023 Medicare Part D data, Dr. Graham's most prescribed drugs by claims were Pantoprazole Sodium, Famotidine and Levothyroxine Sodium.
Has Dr. Nathaniel Lars Graham received payments from drug or device companies?
CMS Open Payments shows $525 in general payments to Dr. Graham from 7 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Nathaniel Lars Graham been practicing?
Dr. Graham graduated from medical school in 1983, 43 years ago.
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