Joseph Owen Merrill

  • Seattle, WA
  • Internist
NPI1235215013PAC ID5597892257
Medicare services, 2024
124
Medicare patients, 2024
56
Part D claims, 2024
2,052
Publications
59
MIPS score, 2024
94
Practice address
325 9th Avenue, Seattle, WA 98104
Practice phone
Call (206) 744-9535
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Harborview Medical Center

Hospital · Seattle, Washington

See all 4 affiliations

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Joseph Owen Merrill is an internist in Seattle, Washington

Joseph Merrill practices at Harborview Medical Center in Seattle, Washington, part of University of Washington.

Joseph Merrill's NPI, 1235215013, was assigned on October 27, 2006. Joseph Merrill graduated from Yale University School of Medicine in 1990. Joseph Merrill holds Washington license MD00033580.

NPI and contact details
Medicare PAC ID
5597892257
NPI enumeration date
October 27, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(206) 744-9535
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
62
Medical school graduation
1990

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Joseph Owen Merrill practices at Harborview Medical Center in Seattle, Washington

Joseph Merrill's primary practice is Harborview Medical Center, at 325 9th Avenue, Seattle, WA 98104 in King County. The practice phone is (206) 744-9535.

Source: Dmand AI Affiliation Data

Joseph Owen Merrill is affiliated with 2 sites of care and 2 medical groups

Joseph Merrill's primary practice is Harborview Medical Center in Seattle, Washington, part of University of Washington. The medical group on file is UW Physicians. Dmand AI also links Joseph Merrill to 1 more hospital and 1 medical group, each named with a free account.

See all 4 affiliations for Joseph Merrill

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Joseph Owen Merrill's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Joseph Merrill practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Harborview Medical CenterAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Joseph Owen Merrill is one of 2,689 internists in Washington

Internal medicine is Joseph Merrill's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Joseph Merrill is licensed in Washington.

Specialties and state licenses

  • Internal medicine, WashingtonPrimaryLicense MD00033580 · taxonomy 207R00000X

Internists near Joseph Merrill

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

Joseph Owen Merrill billed Medicare for 124 services in 2024

CMS data shows 124 Medicare services from Joseph Merrill across 3 procedure codes in 2024, for 56 Medicare patients. Medicare paid $5,838 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024124
Medicare patients56
Paid by Medicare$5,838
Procedure codes3

Joseph Merrill's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1032024: 8418%
Other services
2023: 02024: 40

Joseph Merrill compared with the Washington median for internists, 2024

  • Joseph Merrill
  • Washington median
Medicare services
124vs 36466% below
Medicare patients
56vs 16566% below
Part D claims
1,576vs 1828.7 times

Medians across 2,604 internists in Washington with Dmand AI profiles that report each measure.

Joseph 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.

See all procedures by Joseph Merrill

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Joseph Owen Merrill treated 56 Medicare patients in 2024, average age 67

CMS counts 56 Medicare patients who saw Joseph Merrill in 2024. The largest group is 65 to 74, with 24 patients. 54% of them have high blood pressure, and 41% have mood disorders. 61% are also on Medicaid. Their average risk score is 1.69, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Joseph Merrill's median patient age at 56, with 37% women.

Medicare patients, 202456
Average age67
Average risk score1.69
Also on Medicaid61%

Joseph Merrill's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Joseph Merrill's Medicare patients by sex, 2024

  • Women2138%
  • Men3563%

Chronic conditions among Joseph Merrill's Medicare patients, 2024

  1. High blood pressure54%
  2. Mood disorders41%
  3. Depression39%
  4. Arthritis36%
  5. Anxiety34%
  6. High cholesterol34%
  7. Diabetes32%
  8. Alcohol and drug use disorders25%

Share of Medicare patients with each condition. A patient can have several.

Joseph 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 56

Patient panel by sex, all payers

  • Women37%
  • Men61%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Joseph Owen Merrill wrote 2,052 Medicare Part D claims in 2024

In 2024, Joseph Merrill wrote 2,052 Medicare Part D claims for 77 patients. 77% of them were for generic drugs. CMS names the drug for 1,576 of them, across 53 drugs with 11 or more claims each, at $604,347 in total drug cost. In 2023, CMS named 1,804 claims across 63 drugs.

Part D claims, 20242,052
Drugs named by CMS53
Total drug cost$604,347
Part D patients77

Joseph Merrill's Part D claims by kind of drug, 2024

  • Generic1,585 claims77%
  • Brand-name448 claims22%
  • Other19 claims1%

Joseph 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 Joseph Merrill's Part D claims, 2024

  • Opioids8%155 of 2,052 claims
  • Antipsychotics, patients 65 and over1%16 of 2,052 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, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1,8042024: 1,57613%

Drugs named by CMS: 53 in 2024, 63 in 2023.

See all prescribing by Joseph Merrill

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

Joseph Owen Merrill scored 94 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Joseph Merrill for performance year 2024, reported through an alternative payment model (APM). Joseph Merrill accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Joseph Merrill as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Joseph Merrill's MIPS scores, performance year 2024

  • 94of 100Final score
  • 74.6of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Joseph Owen Merrill has 59 publications on record

Dmand AI links 59 papers to Joseph Merrill, published from 2010 to 2024. 2021 was the busiest year, with 8. The most frequent topics are Opioid-Related Disorders, Analgesics, Opioid and Buprenorphine. Joseph Merrill has published most often in AIDS Behav. Joseph Merrill's most frequent co-authors are Judith Ihseen Tsui, MD, Jared Wilson Klein, MD and Katharine A. Bradley, MD.

Papers59
Years published2010 to 2024

Joseph Merrill's papers by year, 2014 to 2024

Topics Joseph Merrill writes about most

  • Opioid-Related Disorders
  • Analgesics, Opioid
  • Buprenorphine
  • Opiate Substitution Treatment
  • Primary Health Care
  • Narcotic Antagonists
  • Chronic Pain
  • HIV Infections

Joseph Merrill's most frequent co-authors

Recent publications by Joseph Merrill

See all 59 publications and co-authors

See who Joseph Merrill researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Joseph Merrill works with, so you can find a warm path to the right internists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Joseph Owen Merrill graduated from Yale University School of Medicine

Joseph Merrill graduated from Yale University School of Medicine in 1990.

  1. Medical schoolYale University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Joseph Owen Merrill's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Joseph Owen 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 Joseph Owen Merrill's NPI number?

Joseph Owen Merrill's NPI number is 1235215013. It was assigned on October 27, 2006, and it is active in the NPI Registry.

What does Joseph Owen Merrill specialize in?

Joseph Owen Merrill is an internist in Seattle, Washington. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Joseph Owen Merrill practice?

Joseph Merrill practices at 325 9th Avenue, Seattle, WA 98104. Joseph Merrill's primary practice is Harborview Medical Center in Seattle, Washington, part of University of Washington. Dmand AI also links Joseph Merrill to 1 hospital and 1 medical group.

What is Joseph Owen Merrill's office phone number?

The practice phone on file for Joseph Merrill is (206) 744-9535.

What is Joseph Owen Merrill's medical license number?

Joseph Merrill holds Washington license MD00033580.

Which hospitals is Joseph Owen Merrill affiliated with?

Joseph Merrill practices at Harborview Medical Center in Seattle, Washington. Dmand AI links Joseph Merrill to 1 more hospital.

What medical group is Joseph Owen Merrill part of?

Joseph Merrill is linked to UW Physicians. Dmand AI links Joseph Merrill to 1 more medical group.

Does Joseph Owen Merrill accept Medicare?

Yes. CMS data shows Joseph Merrill billed Medicare for 124 services in 2024, and Joseph Merrill accepts Medicare assignment.

Does Joseph Owen Merrill offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Joseph Merrill as offering telehealth services.

What is Joseph Owen Merrill's MIPS score?

Joseph Merrill's MIPS final score for performance year 2024 is 94 out of 100, reported through an alternative payment model (APM).

Show 7 more questionsShow fewer questions

How many Medicare patients does Joseph Owen Merrill see?

CMS counts 56 Medicare patients who saw Joseph Merrill in 2024, with an average age of 67.

What services does Joseph Owen Merrill bill to Medicare?

In 2024, Joseph Merrill's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99213).

Where did Joseph Owen Merrill go to medical school?

Joseph Merrill graduated from Yale University School of Medicine in 1990.

What drugs does Joseph Owen Merrill prescribe most?

In 2024 Medicare Part D data, Joseph Merrill's most prescribed drugs by claims were Gabapentin, Rosuvastatin Calcium and Buprenorphine-Naloxone.

How long has Joseph Owen Merrill been practicing?

Joseph Merrill graduated from medical school in 1990, 36 years ago.

Does Joseph Owen Merrill do research?

Dmand AI links 59 publications to Joseph Merrill, published from 2010 to 2024.

Who does Joseph Owen Merrill publish with?

Joseph Merrill's most frequent co-authors are Judith Ihseen Tsui, MD (19 shared papers), Jared Wilson Klein, MD (10 shared papers) and Katharine A. Bradley, MD (8 shared papers).

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