J Surg Orthop Adv
Arthroplasty, Replacement, HipClinical CompetenceOrthopedic Procedures
Dr. Peter E. Guay, DO
NPI1558361311
- Medicare services, 2020
- 338
- Part D claims, 2020
- 60
- Publications
- 1
- Industry payments
- $18
- Affiliated sites
- 1
- Practice address
- 33 Sewall St, Portland, ME 04102-2603
- Practice phone
- Call (207) 828-2100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Oa Centers For Orthopaedics
Surgical practice · Portland, Maine
Find Dr. Guay's professional email, personal email and mobile number
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Dr. Peter E. Guay is an orthopedic surgeon in Portland, Maine
Dr. Guay practices at Oa Centers For Orthopaedics in Portland, Maine.
Dr. Guay's NPI, 1558361311, was assigned on July 22, 2005. Dr. Guay holds Maine license 1172.
NPI and contact details
- NPI
- 1558361311NPI Registry (opens in a new tab)
- NPI enumeration date
- July 22, 2005
- NPI status
- Active
- Practice phone
- (207) 828-2100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Peter E. Guay practices at 2 locations in Portland, Maine
Dr. Guay's primary practice is Oa Centers for Orthopaedics, at 33 Sewall St, Portland, ME 04102-2603. The practice phone is (207) 828-2100. The NPI Registry lists Dr. Guay's practice address as 22 Bramhall St, Portland, ME 04102.
- Oa Centers for OrthopaedicsPrimary33 Sewall St, Portland, ME 04102-2603Phone(207) 828-2100
- NPI Registry address22 Bramhall St, Portland, ME 04102 · Cumberland CountyPhone(207) 828-2100
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Peter E. Guay is affiliated with 1 site of care and 1 medical group
Dr. Guay's primary practice is Oa Centers For Orthopaedics in Portland, Maine. Dmand AI also links Dr. Guay to 1 medical group, named with a free account.
Oa Centers For OrthopaedicsPrimary
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Peter E. Guay's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Guay practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Oa Centers For Orthopaedics | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peter E. Guay is one of 128 orthopedic surgeons in Maine
Orthopaedic surgery is Dr. Guay's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Guay is licensed in Maine.
Specialties and state licenses
- Orthopaedic surgery, MainePrimary
Orthopedic surgeons near Dr. Guay
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 E. Guay billed Medicare for 338 services in 2020
CMS data shows 338 Medicare services from Dr. Guay across 6 procedure codes in 2020. Medicare paid $11,039 for them.
Medicare services, 2020338
Paid by Medicare$11,039
Procedure codes6
Dr. Guay's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 2852020: 13852%
- Surgery
- 2019: 1132020: 12612%
- Imaging
- 2019: 02020: 74
Where Dr. Guay's Medicare services took place, 2020
- In an office26478%
- In a facility7422%
Dr. Guay compared with the Maine median for orthopedic surgeons, 2020
- Dr. Guay
- Maine median
- Medicare services
- 338vs 24637% above
- Part D claims
- 60vs 3762% above
Medians across 127 orthopedic surgeons in Maine with Dmand AI profiles that report each measure.
Dr. Guay's most billed Medicare procedure codes, 2020
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Guay and other orthopedic surgeons in Maine.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter E. Guay's patients have a median age of 75
Across all payers, Dmand AI patient panel data puts Dr. Guay's median patient age at 75, with 54% women.
Dr. Guay's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women54%
- Men46%
Source: Dmand AI Patient Panel Data
Dr. Peter E. Guay wrote 60 Medicare Part D claims in 2020
In 2020, Dr. Guay wrote 60 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $156 in total drug cost. In 2019, CMS named 81 claims across 2 drugs.
Part D claims, 202060
Drugs named by CMS2
Total drug cost$156
Dr. Guay'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: 812020: 6026%
Drugs named by CMS: 2 in 2020, 2 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Peter E. Guay has 1 publication on record
Dmand AI links 1 paper to Dr. Guay. Dr. Guay's most frequent co-authors are George M. Babikian, MD, Michael W. Becker, MD and Justin Kaeen Chang, MD.
Papers1
Dr. Guay's most frequent co-authors
- George M. Babikian, MD1 shared paper
- Michael W. Becker, MD1 shared paper
- Justin Kaeen Chang, MD1 shared paper
Recent publications by Dr. Guay
See who Dr. Guay researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Guay works with, so you can find a warm path to the right orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Peter E. Guay received $18 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Guay from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. MicroPort Orthopedics Inc paid the most, $18.
Companies that paid Dr. Guay the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Peter E. Guay'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Peter E. Guay
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 E. Guay's NPI number?
Dr. Peter E. Guay's NPI number is 1558361311. It was assigned on July 22, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter E. Guay?
Dr. Peter E. Guay is an orthopedic surgeon in Portland, Maine. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Peter E. Guay practice?
Dr. Guay practices at 33 Sewall St, Portland, ME 04102-2603. Dr. Guay also practices at 22 Bramhall St, Portland, ME 04102. Dr. Guay's primary practice is Oa Centers For Orthopaedics in Portland, Maine. Dmand AI also links Dr. Guay to 1 medical group.
What is Dr. Peter E. Guay's office phone number?
The practice phone on file for Dr. Guay is (207) 828-2100.
What is Dr. Peter E. Guay's medical license number?
Dr. Guay holds Maine license 1172.
Does Dr. Peter E. Guay accept Medicare?
Yes. CMS data shows Dr. Guay billed Medicare for 338 services in 2020.
What services does Dr. Peter E. Guay bill to Medicare?
In 2020, Dr. Guay's most billed Medicare services were surgery: bones and joints (20610), office visit, established patient (99213) and office visit, new patient (99203).
What drugs does Dr. Peter E. Guay prescribe most?
In 2020 Medicare Part D data, Dr. Guay's most prescribed drugs by claims were Amoxicillin and Clindamycin HCl.
Has Dr. Peter E. Guay received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to Dr. Guay from 1 company from 2016 to 2016. The largest total came from MicroPort Orthopedics Inc.
How long has Dr. Peter E. Guay been practicing?
Dr. Guay's NPI was assigned in 2005.
Does Dr. Peter E. Guay do research?
Dmand AI links 1 publication to Dr. Guay.
Who does Dr. Peter E. Guay publish with?
Dr. Guay's most frequent co-authors are George M. Babikian, MD (1 shared paper), Michael W. Becker, MD (1 shared paper) and Justin Kaeen Chang, MD (1 shared paper).
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