Clark Morris Hatheway
- Medicare services, 2024
- 393
- Medicare patients, 2024
- 133
- Part D claims, 2024
- 2,652
- Hospital affiliations
- 1
- Industry payments
- $18
- Practice address
- 1200 12th S Ave, Seattle, WA 98144
- Practice phone
- Call (206) 621-4316
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Pacific Medical Centers
Seattle, Washington
Find Clark Hatheway'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.
Clark Morris Hatheway is an internist in Seattle, Washington
Clark Hatheway practices at Pacific Medical Centers in Seattle, Washington.
Clark Hatheway's NPI, 1861955783, was assigned on April 8, 2019. Clark Hatheway graduated from University of Pittsburgh School of Medicine in 2019. Clark Hatheway holds Washington license MD61263733.
- NPI
- 1861955783NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375928179
- NPI enumeration date
- April 8, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (206) 621-4316
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Clark Morris Hatheway practices at Pacific Medical Centers in Seattle, Washington
Clark Hatheway's primary practice is Pacific Medical Centers, at 1200 12th S Ave, Seattle, WA 98144 in King County. The practice phone is (206) 621-4316.
- Pacific Medical Centers1200 12th S Ave, Seattle, WA 98144 · King CountyPhone(206) 621-4316
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Clark Morris Hatheway is affiliated with 3 sites of care and 1 medical group
Clark Hatheway's primary practice is Pacific Medical Centers in Seattle, Washington. Clark Hatheway is also affiliated with EvergreenHealth Medical Center. The medical group on file is Pacific Medical Centers (PacMed). Dmand AI also links Clark Hatheway to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Clark Morris Hatheway's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Clark Hatheway practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Pacific Medical Centers | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Clark Morris Hatheway is one of 2,689 internists in Washington
Internal medicine is Clark Hatheway's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Clark Hatheway is licensed in Washington.
Specialties and state licenses
- Internal medicine, WashingtonPrimary
Internists near Clark Hatheway
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
Clark Morris Hatheway billed Medicare for 393 services in 2024
CMS data shows 393 Medicare services from Clark Hatheway across 10 procedure codes in 2024, for 133 Medicare patients. Medicare paid $34,256 for them. Every service was in an office.
Clark Hatheway's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1562024: 21135%
- Other services
- 2023: 432024: 108151%
- Tests and treatments
- 2023: 172024: 74335%
Clark Hatheway compared with the Washington median for internists, 2024
- Clark Hatheway
- Washington median
- Medicare services
- 393vs 3648% above
- Medicare patients
- 133vs 16519% below
- Part D claims
- 2,019vs 18211.1 times
Medians across 2,604 internists in Washington with Dmand AI profiles that report each measure.
Clark Hatheway'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 Clark Hatheway and other internists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Clark Morris Hatheway treated 133 Medicare patients in 2024, average age 72
CMS counts 133 Medicare patients who saw Clark Hatheway in 2024. The largest group is 65 to 74, with 69 patients. 69% of them have high cholesterol, and 53% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.12, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Clark Hatheway's median patient age at 68, with 40% women.
Clark Hatheway's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Clark Hatheway's Medicare patients by sex, 2024
- Women5541%
- Men7859%
Chronic conditions among Clark Hatheway's Medicare patients, 2024
- High cholesterol69%
- High blood pressure53%
- Arthritis41%
- Diabetes20%
- Ischemic heart disease20%
- Osteoporosis19%
- Anxiety18%
- Chronic kidney disease17%
Share of Medicare patients with each condition. A patient can have several.
Clark Hatheway's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women40%
- Men60%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Clark Morris Hatheway wrote 2,652 Medicare Part D claims in 2024
In 2024, Clark Hatheway wrote 2,652 Medicare Part D claims for 366 patients. 88% of them were for generic drugs. CMS names the drug for 2,019 of them, across 54 drugs with 11 or more claims each, at $174,929 in total drug cost. In 2023, CMS named 1,126 claims across 35 drugs.
Clark Hatheway's Part D claims by kind of drug, 2024
- Generic2,329 claims88%
- Brand-name304 claims11%
- Other19 claims1%
Clark Hatheway'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 Clark Hatheway's Part D claims, 2024
- Opioids2%52 of 2,652 claims
- Antibiotics1%30 of 2,652 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: 1,1262024: 2,01979%
Drugs named by CMS: 54 in 2024, 35 in 2023.
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
Clark Morris Hatheway offers telehealth to Medicare patients
Clark Hatheway accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Clark Hatheway as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Clark Morris Hatheway received $18 in industry payments in 2024
CMS Open Payments shows 1 general payment to Clark Hatheway from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Hologic Inc paid the most, $18.
Companies that paid Clark Hatheway the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Clark Morris Hatheway graduated from University of Pittsburgh School of Medicine
Clark Hatheway graduated from University of Pittsburgh School of Medicine in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Clark Morris Hatheway'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| 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 Clark Morris Hatheway
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Clark Morris Hatheway's NPI number?
Clark Morris Hatheway's NPI number is 1861955783. It was assigned on April 8, 2019, and it is active in the NPI Registry.
What does Clark Morris Hatheway specialize in?
Clark Morris Hatheway is an internist in Seattle, Washington. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Clark Morris Hatheway practice?
Clark Hatheway practices at 1200 12th S Ave, Seattle, WA 98144. Clark Hatheway's primary practice is Pacific Medical Centers in Seattle, Washington. Dmand AI also links Clark Hatheway to 1 group practice or clinic.
What is Clark Morris Hatheway's office phone number?
The practice phone on file for Clark Hatheway is (206) 621-4316.
What is Clark Morris Hatheway's medical license number?
Clark Hatheway holds Washington license MD61263733.
Which hospitals is Clark Morris Hatheway affiliated with?
Clark Hatheway is affiliated with EvergreenHealth Medical Center.
What medical group is Clark Morris Hatheway part of?
Clark Hatheway is linked to Pacific Medical Centers (PacMed).
Does Clark Morris Hatheway accept Medicare?
Yes. CMS data shows Clark Hatheway billed Medicare for 393 services in 2024, and Clark Hatheway accepts Medicare assignment.
Does Clark Morris Hatheway offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Clark Hatheway as offering telehealth services.
How many Medicare patients does Clark Morris Hatheway see?
CMS counts 133 Medicare patients who saw Clark Hatheway in 2024, with an average age of 72.
Show 5 more questionsShow fewer questions
What services does Clark Morris Hatheway bill to Medicare?
In 2024, Clark Hatheway's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0439).
Where did Clark Morris Hatheway go to medical school?
Clark Hatheway graduated from University of Pittsburgh School of Medicine in 2019.
What drugs does Clark Morris Hatheway prescribe most?
In 2024 Medicare Part D data, Clark Hatheway's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Clark Morris Hatheway received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to Clark Hatheway from 1 company from 2024 to 2024. The largest total came from Hologic Inc.
How long has Clark Morris Hatheway been practicing?
Clark Hatheway graduated from medical school in 2019, 7 years ago.
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