Dr. Matthew Scott Merrill, DO
- Medicare services, 2024
- 431
- Medicare patients, 2024
- 160
- Part D claims, 2024
- 200
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- 350 West Thomas Road, Phoenix, AZ 85013
- Practice phone
- Call (602) 406-8225
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Merrill'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. Matthew Scott Merrill is a hospitalist in Phoenix, Arizona
Dr. Merrill practices at Dignity Health St. Joseph's Hospital and Medical Center in Phoenix, Arizona, part of CommonSpirit Health.
Dr. Merrill's NPI, 1073955381, was assigned on July 28, 2013. Dr. Merrill holds Arizona license 7277.
- NPI
- 1073955381NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305118274
- NPI enumeration date
- July 28, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (602) 406-8225
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Matthew Scott Merrill practices at Dignity Health St. Joseph's Hospital and Medical Center in Phoenix, Arizona
Dr. Merrill's primary practice is Dignity Health St. Joseph's Hospital and Medical Center, at 350 West Thomas Road, Phoenix, AZ 85013 in Maricopa County. The practice phone is (602) 406-8225.
- Dignity Health St. Joseph's Hospital and Medical Center350 West Thomas Road, Phoenix, AZ 85013 · Maricopa CountyPhone(602) 406-8225
Source: Dmand AI Affiliation Data
Dr. Matthew Scott Merrill is affiliated with 2 sites of care and 2 medical groups
Dr. Merrill's primary practice is Dignity Health St. Joseph's Hospital and Medical Center in Phoenix, Arizona, part of CommonSpirit Health. Dr. Merrill is also affiliated with Select Specialty Hospital - Phoenix. The medical group on file is St. Joseph's Faculty Physicians. Dmand AI also links Dr. Merrill to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Matthew Scott Merrill's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Merrill practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health St. Joseph's Hospital and Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Matthew Scott Merrill is one of 720 hospitalists in Arizona
Hospitalist is Dr. Merrill's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dmand AI has Dr. Merrill's licenses on file in 2 states: Arizona and Florida.
Specialties and state licenses
- Hospitalist, ArizonaPrimary
- Internal medicine, Florida
Hospitalists near Dr. Merrill
Counts of hospitalists 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. Matthew Scott Merrill billed Medicare for 431 services in 2024
CMS data shows 431 Medicare services from Dr. Merrill across 4 procedure codes in 2024, for 160 Medicare patients. Medicare paid $33,384 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Merrill's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3892024: 43111%
Dr. Merrill compared with the Arizona median for hospitalists, 2024
- Dr. Merrill
- Arizona median
- Medicare services
- 431vs 51216% below
- Medicare patients
- 160vs 24535% below
- Part D claims
- 16vs 9483% below
Medians across 617 hospitalists in Arizona with Dmand AI profiles that report each measure.
Dr. Merrill's most billed Medicare procedure codes, 2024
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. Merrill and other hospitalists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Matthew Scott Merrill treated 160 Medicare patients in 2024, average age 74
CMS counts 160 Medicare patients who saw Dr. Merrill in 2024. The largest group is 65 to 74, with 64 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 28% are also on Medicaid. Their average risk score is 2.35, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Merrill's median patient age at 65, with 44% women.
Dr. Merrill's Medicare patients by age, 2024
Dr. Merrill's Medicare patients by sex, 2024
- Women7144%
- Men8956%
Chronic conditions among Dr. Merrill's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease57%
- Arthritis51%
- Chronic kidney disease44%
- Heart failure44%
- Diabetes39%
- Atrial fibrillation38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Merrill's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women44%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Matthew Scott Merrill wrote 200 Medicare Part D claims in 2024
In 2024, Dr. Merrill wrote 200 Medicare Part D claims for 98 patients. 84% of them were for generic drugs. CMS names the drug for 16 of them, across 1 drug with 11 or more claims each, at $93 in total drug cost. In 2021, CMS named 19 claims across 1 drug.
Dr. Merrill's Part D claims by kind of drug, 2024
- Generic168 claims84%
- Brand-name and other32 claims16%
Dr. Merrill's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Merrill's Part D claims, 2024
- Opioids9%17 of 200 claims
- Antibiotics18%36 of 200 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2021 to 2024
- 2021
- 2024
- Claims for drugs CMS names
- 2021: 192024: 1616%
Drugs named by CMS: 1 in 2024, 1 in 2021.
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
How Dr. Matthew Scott Merrill takes part in Medicare
Dr. Merrill accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Matthew Scott Merrill has 1 publication on record
Dmand AI links 1 paper to Dr. Merrill in 2022.
Recent publications by Dr. Merrill
See who Dr. Merrill researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Merrill works with, so you can find a warm path to the right hospitalists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Matthew Scott Merrill received $165 in industry payments from 2018 to 2025
CMS Open Payments shows 3 general payments to Dr. Merrill from 3 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $146.
General payments to Dr. Merrill by program year, 2018 to 2025
Companies that paid Dr. Merrill the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Matthew Scott Merrill'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 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Matthew Scott Merrill
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. Matthew Scott Merrill's NPI number?
Dr. Matthew Scott Merrill's NPI number is 1073955381. It was assigned on July 28, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Matthew Scott Merrill?
Dr. Matthew Scott Merrill is a hospitalist in Phoenix, Arizona. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Matthew Scott Merrill practice?
Dr. Merrill practices at 350 West Thomas Road, Phoenix, AZ 85013. Dr. Merrill's primary practice is Dignity Health St. Joseph's Hospital and Medical Center in Phoenix, Arizona, part of CommonSpirit Health. Dmand AI also links Dr. Merrill to 1 medical group.
What is Dr. Matthew Scott Merrill's office phone number?
The practice phone on file for Dr. Merrill is (602) 406-8225.
What is Dr. Matthew Scott Merrill's medical license number?
Dr. Merrill holds Arizona license 7277, one of the licenses on file in 2 states.
Which states has Dr. Matthew Scott Merrill been licensed in?
Dmand AI has state licenses on file for Dr. Merrill in Arizona and Florida.
Which hospitals is Dr. Matthew Scott Merrill affiliated with?
Dr. Merrill practices at Dignity Health St. Joseph's Hospital and Medical Center in Phoenix, Arizona. Dr. Merrill is also affiliated with Select Specialty Hospital - Phoenix.
What medical group is Dr. Matthew Scott Merrill part of?
Dr. Merrill is linked to St. Joseph's Faculty Physicians. Dmand AI links Dr. Merrill to 1 more medical group.
Does Dr. Matthew Scott Merrill accept Medicare?
Yes. CMS data shows Dr. Merrill billed Medicare for 431 services in 2024, and Dr. Merrill accepts Medicare assignment.
How many Medicare patients does Dr. Matthew Scott Merrill see?
CMS counts 160 Medicare patients who saw Dr. Merrill in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Dr. Matthew Scott Merrill bill to Medicare?
In 2024, Dr. Merrill's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99239).
What drugs does Dr. Matthew Scott Merrill prescribe most?
In 2024 Medicare Part D data, Dr. Merrill's most prescribed drugs by claims were Clopidogrel.
Has Dr. Matthew Scott Merrill received payments from drug or device companies?
CMS Open Payments shows $165 in general payments to Dr. Merrill from 3 companies from 2018 to 2025. The largest total came from Allergan Inc.
How long has Dr. Matthew Scott Merrill been practicing?
Dr. Merrill graduated from medical school in 2013, 13 years ago.
Does Dr. Matthew Scott Merrill do research?
Dmand AI links 1 publication to Dr. Merrill.
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