William Robert Walker, PA-C
- Medicare patients, 2024
- 105
- Part D claims, 2024
- 74
- MIPS score, 2024
- 98
- Hospital affiliations
- 1
- Medical groups
- 2
- Practice address
- 6 Glen Cove Drive, Rockport, ME 04856
- Practice phone
- Call (207) 921-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find William Walker'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.
William Robert Walker is a physician assistant in Rockport, Maine
William Walker practices at MaineHealth Pen Bay Hospital in Rockport, Maine, part of MaineHealth.
William Walker's NPI, 1013227321, was assigned on October 20, 2010. William Walker holds Montana license 638.
- NPI
- 1013227321NPI Registry (opens in a new tab)
- NPI enumeration date
- October 20, 2010
- NPI status
- Active
- Practice phone
- (207) 921-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
William Robert Walker practices at MaineHealth Pen Bay Hospital in Rockport, Maine
William Walker's primary practice is MaineHealth Pen Bay Hospital, at 6 Glen Cove Drive, Rockport, ME 04856 in Knox County. The practice phone is (207) 921-8000.
- MaineHealth Pen Bay Hospital6 Glen Cove Drive, Rockport, ME 04856 · Knox CountyPhone(207) 921-8000
Source: Dmand AI Affiliation Data
William Robert Walker is affiliated with 1 site of care and 2 medical groups
William Walker's primary practice is MaineHealth Pen Bay Hospital in Rockport, Maine, part of MaineHealth. The medical group on file is MaineHealth Pen Bay Hospital. Dmand AI also links William Walker to 1 more medical group, named with a free account. William Walker'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 Robert Walker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Walker practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MaineHealth Pen Bay Hospital | Available with a free account |
| +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 MaineHealth and 6.2K+ hospitals, with verified contacts in the same login.
William Robert Walker is one of 813 physician assistants in Maine
Physician assistant is William Walker's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has William Walker's licenses on file in 2 states: Montana and Maine.
Specialties and state licenses
- Physician assistant, MontanaPrimary
- Medical physician assistant, Maine
Physician assistants near William Walker
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 Robert Walker treated 105 Medicare patients in 2024, average age 75
CMS counts 105 Medicare patients who saw William Walker in 2024. The largest group is 65 to 74, with 46 patients. 66% of them have high cholesterol, and 53% have arthritis. 13% are also on Medicaid. Their average risk score is 0.94, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts William Walker's median patient age at 67, with 7% women.
William Walker's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
William Walker's Medicare patients by sex, 2024
- Women6057%
- Men4543%
Chronic conditions among William Walker's Medicare patients, 2024
- High cholesterol66%
- Arthritis53%
- High blood pressure51%
- Mood disorders24%
- Depression20%
- Anxiety17%
- Osteoporosis17%
- Atrial fibrillation16%
Share of Medicare patients with each condition. A patient can have several.
William Walker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women7%
- Men93%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
William Robert Walker wrote 74 Medicare Part D claims in 2024
In 2024, William Walker wrote 74 Medicare Part D claims for 66 patients. 93% of them were for generic drugs.
William Walker's Part D claims by kind of drug, 2024
- Generic69 claims93%
- Brand-name and other5 claims7%
Drug classes CMS tracks in William Walker's Part D claims, 2024
- Antibiotics61%45 of 74 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 Robert Walker scored 98 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for William Walker for performance year 2024, reported through an alternative payment model (APM).
William Walker's MIPS scores, performance year 2024
- 98of 100Final score
- 83.3of 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 Robert Walker'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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 Robert Walker
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 Robert Walker's NPI number?
William Robert Walker's NPI number is 1013227321. It was assigned on October 20, 2010, and it is active in the NPI Registry.
What does William Robert Walker specialize in?
William Robert Walker is a physician assistant in Rockport, Maine. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does William Robert Walker practice?
William Walker practices at 6 Glen Cove Drive, Rockport, ME 04856. William Walker's primary practice is MaineHealth Pen Bay Hospital in Rockport, Maine, part of MaineHealth. Dmand AI also links William Walker to 1 medical group.
What is William Robert Walker's office phone number?
The practice phone on file for William Walker is (207) 921-8000.
What is William Robert Walker's medical license number?
William Walker holds Montana license 638, one of the licenses on file in 2 states.
Which states has William Robert Walker been licensed in?
Dmand AI has state licenses on file for William Walker in Montana and Maine.
Which hospitals is William Robert Walker affiliated with?
William Walker practices at MaineHealth Pen Bay Hospital in Rockport, Maine.
What medical group is William Robert Walker part of?
William Walker is linked to MaineHealth Pen Bay Hospital. Dmand AI links William Walker to 1 more medical group.
What is William Robert Walker's MIPS score?
William Walker's MIPS final score for performance year 2024 is 98 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does William Robert Walker see?
CMS counts 105 Medicare patients who saw William Walker in 2024, with an average age of 75.
How long has William Robert Walker been practicing?
William Walker graduated from medical school in 2010, 16 years ago.
Selling to physician assistant practices?
See physician assistants in Maine 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