Dr. William E. Merrell, MD
- Medicare services, 2023
- 146
- Part D claims, 2024
- 19
- Industry payments
- $2,764
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 3221 N Windsong Dr, Prescott Valley, AZ 86314
- Practice phone
- Call (928) 910-7010
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Spectrum Healthcare Group - Prescott Valley (N Windsong Dr)
Multi-specialty group site · Prescott Valley, Arizona
Find Dr. Merrell's professional email, personal email and mobile number
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Dr. William E. Merrell is an internist in Prescott Valley, Arizona
Dr. Merrell practices at Spectrum Healthcare Group - Prescott Valley (N Windsong Dr) in Prescott Valley, Arizona.
Dr. Merrell's NPI, 1942339254, was assigned on March 4, 2007. Dr. Merrell graduated from University of Arkansas College of Medicine in 1973. Dr. Merrell holds Arizona license 11399.
- NPI
- 1942339254NPI Registry (opens in a new tab)
- NPI enumeration date
- March 4, 2007
- NPI status
- Active
- Practice phone
- (928) 910-7010
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 79
- Medical school graduation
- 1973
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William E. Merrell practices at Spectrum Healthcare Group - Prescott Valley (N Windsong Dr) in Prescott Valley, Arizona
Dr. Merrell's primary practice is Spectrum Healthcare Group - Prescott Valley (N Windsong Dr), at 3221 N Windsong Dr, Prescott Valley, AZ 86314. The practice phone is (928) 910-7010.
- Spectrum Healthcare Group - Prescott Valley (N Windsong Dr)3221 N Windsong Dr, Prescott Valley, AZ 86314Phone(928) 910-7010
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William E. Merrell is affiliated with 1 site of care and 1 medical group
Dr. Merrell's primary practice is Spectrum Healthcare Group - Prescott Valley (N Windsong Dr) in Prescott Valley, Arizona. The medical group on file is Spectrum Healthcare Group.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. William E. Merrell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Merrell practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Spectrum Healthcare Group - Prescott Valley (N Windsong Dr) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William E. Merrell is one of 2,420 internists in Arizona
Internal medicine is Dr. Merrell's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Merrell is licensed in Arizona.
Specialties and state licenses
- Internal medicine, ArizonaPrimary
Internists near Dr. Merrell
Counts of internists 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. William E. Merrell billed Medicare for 146 services in 2023
CMS data shows 146 Medicare services from Dr. Merrell across 5 procedure codes in 2023. Medicare paid $5,946 for them. Every service was in an office.
Dr. Merrell's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 5382023: 7985%
- Other services
- 2022: 3372023: 6780%
- Drugs given in the office
- 2022: 1242023: 0100%
- Lab and pathology
- 2022: 212023: 0100%
- Tests and treatments
- 2022: 392023: 0100%
Dr. Merrell compared with the Arizona median for internists, 2023
- Dr. Merrell
- Arizona median
- Medicare services
- 146vs 47669% below
- Part D claims
- 708vs 2602.7 times
Medians across 2,300 internists in Arizona with Dmand AI profiles that report each measure.
Dr. Merrell'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.
Need commercial claims for Dr. Merrell?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Merrell and other internists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William E. Merrell's patients have a median age of 79
Across all payers, Dmand AI patient panel data puts Dr. Merrell's median patient age at 79, with 39% women.
Dr. Merrell's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women39%
- Men61%
Source: Dmand AI Patient Panel Data
Dr. William E. Merrell wrote 19 Medicare Part D claims in 2024
In 2024, Dr. Merrell wrote 19 Medicare Part D claims for 14 patients. 84% of them were for generic drugs. They cover 25 drugs, with $9,977 in total drug cost. In 2022, CMS named 1,543 claims across 38 drugs.
Dr. Merrell's Part D claims by kind of drug, 2024
- Generic16 claims84%
- Brand-name and other3 claims16%
Dr. Merrell'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: 1,5432023: 70854%
Drugs named by CMS: 25 in 2023, 38 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. William E. Merrell received $2,764 in industry payments from 2016 to 2023
CMS Open Payments shows 167 general payments to Dr. Merrell from 18 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $591.
General payments to Dr. Merrell by program year, 2016 to 2023
Companies that paid Dr. Merrell the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William E. Merrell graduated from University of Arkansas College of Medicine
Dr. Merrell graduated from University of Arkansas College of Medicine in 1973.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William E. Merrell'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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)Medicare Part D Prescribers - by Provider (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. William E. Merrell
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. William E. Merrell's NPI number?
Dr. William E. Merrell's NPI number is 1942339254. It was assigned on March 4, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. William E. Merrell?
Dr. William E. Merrell is an internist in Prescott Valley, Arizona. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. William E. Merrell practice?
Dr. Merrell practices at 3221 N Windsong Dr, Prescott Valley, AZ 86314. Dr. Merrell's primary practice is Spectrum Healthcare Group - Prescott Valley (N Windsong Dr) in Prescott Valley, Arizona.
What is Dr. William E. Merrell's office phone number?
The practice phone on file for Dr. Merrell is (928) 910-7010.
What is Dr. William E. Merrell's medical license number?
Dr. Merrell holds Arizona license 11399.
What medical group is Dr. William E. Merrell part of?
Dr. Merrell is linked to Spectrum Healthcare Group.
Does Dr. William E. Merrell accept Medicare?
Yes. CMS data shows Dr. Merrell billed Medicare for 146 services in 2023.
What services does Dr. William E. Merrell bill to Medicare?
In 2023, Dr. Merrell's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and medicare service (G0444).
Where did Dr. William E. Merrell go to medical school?
Dr. Merrell graduated from University of Arkansas College of Medicine in 1973.
What drugs does Dr. William E. Merrell prescribe most?
In 2023 Medicare Part D data, Dr. Merrell's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Lisinopril.
Has Dr. William E. Merrell received payments from drug or device companies?
CMS Open Payments shows $2,764 in general payments to Dr. Merrell from 18 companies from 2016 to 2023. The largest total came from Amgen Inc.
How long has Dr. William E. Merrell been practicing?
Dr. Merrell graduated from medical school in 1973, 53 years ago.
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