William Guy Mahan, PA-C
- Part D claims, 2024
- 125
- MIPS score, 2024
- 97
- Hospital affiliations
- 1
- Medical groups
- 2
- State license
- 1
- Practice address
- 10 Wayman Lane, Bar Harbor, ME 04609
- Practice phone
- Call (207) 288-5081
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find William Mahan's professional email, personal email and mobile number
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William Guy Mahan is a physician assistant in Bar Harbor, Maine
William Mahan practices at Mount Desert Island Hospital in Bar Harbor, Maine, part of Mount Desert Island Hospital.
William Mahan's NPI, 1962514356, was assigned on August 31, 2006. William Mahan holds Maine license PA385.
- NPI
- 1962514356NPI Registry (opens in a new tab)
- NPI enumeration date
- August 31, 2006
- NPI status
- Active
- Practice phone
- (207) 288-5081
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
William Guy Mahan practices at Mount Desert Island Hospital in Bar Harbor, Maine
William Mahan's primary practice is Mount Desert Island Hospital, at 10 Wayman Lane, Bar Harbor, ME 04609 in Hancock County. The practice phone is (207) 288-5081.
- Mount Desert Island Hospital10 Wayman Lane, Bar Harbor, ME 04609 · Hancock CountyPhone(207) 288-5081
Source: Dmand AI Affiliation Data
William Guy Mahan is affiliated with 2 sites of care and 2 medical groups
William Mahan's primary practice is Mount Desert Island Hospital in Bar Harbor, Maine, part of Mount Desert Island Hospital. The medical group on file is Mount Desert Island Hospital. Dmand AI also links William Mahan to 1 more therapy and rehab clinic and 1 medical group, each named with a free account. William Mahan's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at William Guy Mahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Mahan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mount Desert Island Hospital | Available with a free account |
| +1 more site and 1 medical group | 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 Mount Desert Island Hospital and 6.2K+ hospitals, with verified contacts in the same login.
William Guy Mahan is one of 193 physician assistants in Maine
Medical is William Mahan's primary specialty in the NPI Registry, under taxonomy code 363AM0700X. William Mahan is licensed in Maine.
Specialties and state licenses
- Medical physician assistant, MainePrimary
Physician assistants near William Mahan
Counts of physician assistants 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
William Guy Mahan's patients have a median age of 72
Across all payers, Dmand AI patient panel data puts William Mahan's median patient age at 72, with 55% women.
William Mahan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women55%
- Men45%
Source: Dmand AI Patient Panel Data
William Guy Mahan wrote 125 Medicare Part D claims in 2024
In 2024, William Mahan wrote 125 Medicare Part D claims for 106 patients. 87% of them were for generic drugs.
William Mahan's Part D claims by kind of drug, 2024
- Generic109 claims87%
- Brand-name16 claims13%
Drug classes CMS tracks in William Mahan's Part D claims, 2024
- Antibiotics46%57 of 125 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
William Guy Mahan scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for William Mahan for performance year 2024, reported through an alternative payment model (APM).
William Mahan's MIPS scores, performance year 2024
- 97of 100Final score
- 83.2of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 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.
Sources for William Guy Mahan'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 DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (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 William Guy Mahan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is William Guy Mahan's NPI number?
William Guy Mahan's NPI number is 1962514356. It was assigned on August 31, 2006, and it is active in the NPI Registry.
What does William Guy Mahan specialize in?
William Guy Mahan is a physician assistant in Bar Harbor, Maine. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).
Where does William Guy Mahan practice?
William Mahan practices at 10 Wayman Lane, Bar Harbor, ME 04609. William Mahan's primary practice is Mount Desert Island Hospital in Bar Harbor, Maine, part of Mount Desert Island Hospital. Dmand AI also links William Mahan to 1 therapy and rehab clinic and 1 medical group.
What is William Guy Mahan's office phone number?
The practice phone on file for William Mahan is (207) 288-5081.
What is William Guy Mahan's medical license number?
William Mahan holds Maine license PA385.
Which hospitals is William Guy Mahan affiliated with?
William Mahan practices at Mount Desert Island Hospital in Bar Harbor, Maine.
What medical group is William Guy Mahan part of?
William Mahan is linked to Mount Desert Island Hospital. Dmand AI links William Mahan to 1 more medical group.
What is William Guy Mahan's MIPS score?
William Mahan's MIPS final score for performance year 2024 is 97 out of 100, reported through an alternative payment model (APM).
How long has William Guy Mahan been practicing?
William Mahan graduated from medical school in 1992, 34 years ago.
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