Dr. Clayton Lee Foster, MD
- Medicare services, 2024
- 594
- Medicare patients, 2024
- 123
- Part D claims, 2024
- 1,118
- Publications
- 6
- MIPS score, 2024
- 97
- Practice address
- 786831 Alii Dr, Kailua-Kona, HI 96740
- Practice phone
- Call (808) 747-8321
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Alii Health Center
Kailua-Kona, Hawaii
Find Dr. Foster's professional email, personal email and mobile number
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Dr. Clayton Lee Foster is an infectious disease specialist in Kailua-Kona, Hawaii
Dr. Foster practices at Alii Health Center in Kailua-Kona, Hawaii.
Dr. Foster's NPI, 1003105255, was assigned on March 28, 2011. Dr. Foster graduated from University of Alabama School of Medicine in 2011. Dr. Foster holds Hawaii license MD-22161.
- NPI
- 1003105255NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991010613
- NPI enumeration date
- March 28, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (808) 747-8321
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Clayton Lee Foster practices at Alii Health Center in Kailua-Kona, Hawaii
Dr. Foster's primary practice is Alii Health Center, at 786831 Alii Dr, Kailua-Kona, HI 96740 in Hawaii County. The practice phone is (808) 747-8321.
- Alii Health Center786831 Alii Dr, Kailua-Kona, HI 96740 · Hawaii CountyPhone(808) 747-8321
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Clayton Lee Foster is affiliated with 4 sites of care and 2 medical groups
Dr. Foster's primary practice is Alii Health Center in Kailua-Kona, Hawaii. Dr. Foster is also affiliated with Kona Community Hospital. The medical group on file is Ali'i Health Center. Dmand AI also links Dr. Foster to 2 more group practices and clinics and 1 medical group, each 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 Dr. Clayton Lee Foster's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Foster practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Alii Health Center | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Clayton Lee Foster is one of 37 infectious disease specialists in Hawaii
Infectious disease is Dr. Foster's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Foster is board certified in infectious disease by the American Board of Internal Medicine. Dmand AI has Dr. Foster's licenses on file in 2 states: Hawaii and Colorado.
Specialties and state licenses
- Infectious disease, HawaiiPrimary
- Internal medicine, Colorado
Infectious disease specialists near Dr. Foster
Counts of infectious disease specialists 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. Clayton Lee Foster billed Medicare for 594 services in 2024
CMS data shows 594 Medicare services from Dr. Foster across 9 procedure codes in 2024, for 123 Medicare patients. Medicare paid $51,999 for them.
Dr. Foster's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4712024: 55518%
- Surgery
- 2023: 302024: 3930%
Where Dr. Foster's Medicare services took place, 2024
- In an office37363%
- In a facility22137%
Dr. Foster compared with the Hawaii median for infectious disease specialists, 2024
- Dr. Foster
- Hawaii median
- Medicare services
- 594vs 37061% above
- Medicare patients
- 123vs 126Close to median
- Part D claims
- 913vs 1207.6 times
Medians across 33 infectious disease specialists in Hawaii with Dmand AI profiles that report each measure.
Dr. Foster'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Clayton Lee Foster treated 123 Medicare patients in 2024, average age 74
CMS counts 123 Medicare patients who saw Dr. Foster in 2024. The largest group is 75 to 84, with 53 patients. 73% of them have high blood pressure, and 73% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.71, 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. Foster's median patient age at 70, with 47% women.
Dr. Foster's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Foster's Medicare patients by sex, 2024
- Women5847%
- Men6553%
Chronic conditions among Dr. Foster's Medicare patients, 2024
- High blood pressure73%
- High cholesterol73%
- Arthritis48%
- Chronic kidney disease36%
- Diabetes33%
- COPD30%
- Ischemic heart disease30%
- Mood disorders29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Foster's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Clayton Lee Foster wrote 1,118 Medicare Part D claims in 2024
In 2024, Dr. Foster wrote 1,118 Medicare Part D claims for 156 patients. 85% of them were for generic drugs. CMS names the drug for 913 of them, across 28 drugs with 11 or more claims each, at $1,435,950 in total drug cost. In 2023, CMS named 549 claims across 21 drugs.
Dr. Foster's Part D claims by kind of drug, 2024
- Generic946 claims85%
- Brand-name172 claims15%
Dr. Foster'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. Foster's Part D claims, 2024
- Antibiotics62%691 of 1,118 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: 5492024: 91366%
Drugs named by CMS: 28 in 2024, 21 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
Dr. Clayton Lee Foster scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Foster for performance year 2024, reported through an alternative payment model (APM). Dr. Foster accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Foster as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Foster's MIPS scores, performance year 2024
- 97of 100Final score
- 89.8of 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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Dr. Clayton Lee Foster has 6 publications on record
Dmand AI links 6 papers to Dr. Foster, published from 2015 to 2025. The most frequent topics are Anti-Bacterial Agents, Colorado and Diagnosis, Differential. Dr. Foster's most frequent co-authors are Kristine M. Erlandson, MD, Mary Theresa Bessesen, MD and Chase Stuart Dean, MD.
Dr. Foster's papers by year, 2015 to 2025
Topics Dr. Foster writes about most
- Anti-Bacterial Agents
- Colorado
- Diagnosis, Differential
- Diagnostic Errors
- Dogs
- Plague
- Yersinia pestis
Dr. Foster's most frequent co-authors
- Kristine M. Erlandson, MD3 shared papers
- Mary Theresa Bessesen, MD1 shared paper
- Chase Stuart Dean, MD1 shared paper
Recent publications by Dr. Foster
AIDS Res Hum Retroviruses
MMWR Morb Mortal Wkly Rep
See who Dr. Foster researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Foster works with, so you can find a warm path to the right infectious disease specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Clayton Lee Foster received $3,974 in industry payments from 2016 to 2025
CMS Open Payments shows 208 general payments to Dr. Foster from 14 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 92% of the total. Insmed, Inc. paid the most, $1,116.
General payments to Dr. Foster by program year, 2016 to 2025
General payments to Dr. Foster by kind, 2016 to 2025
- Food and beverage$3,66692%
- Education$3088%
Companies that paid Dr. Foster the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Clayton Lee Foster graduated from University of Alabama School of Medicine
Dr. Foster graduated from University of Alabama School of Medicine in 2011.
- Medical school
- Board certified in infectious disease
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Clayton Lee Foster'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)Clinician Public Reporting: Overall MIPS Performance (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) |
| 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. Clayton Lee Foster
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. Clayton Lee Foster's NPI number?
Dr. Clayton Lee Foster's NPI number is 1003105255. It was assigned on March 28, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Clayton Lee Foster?
Dr. Clayton Lee Foster is an infectious disease specialist in Kailua-Kona, Hawaii. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Clayton Lee Foster practice?
Dr. Foster practices at 786831 Alii Dr, Kailua-Kona, HI 96740. Dr. Foster's primary practice is Alii Health Center in Kailua-Kona, Hawaii. Dmand AI also links Dr. Foster to 2 group practices and clinics and 1 medical group.
What is Dr. Clayton Lee Foster's office phone number?
The practice phone on file for Dr. Foster is (808) 747-8321.
What is Dr. Clayton Lee Foster's medical license number?
Dr. Foster holds Hawaii license MD-22161, one of the licenses on file in 2 states.
Which states has Dr. Clayton Lee Foster been licensed in?
Dmand AI has state licenses on file for Dr. Foster in Hawaii and Colorado.
Which hospitals is Dr. Clayton Lee Foster affiliated with?
Dr. Foster is affiliated with Kona Community Hospital.
What medical group is Dr. Clayton Lee Foster part of?
Dr. Foster is linked to Ali'i Health Center. Dmand AI links Dr. Foster to 1 more medical group.
Does Dr. Clayton Lee Foster accept Medicare?
Yes. CMS data shows Dr. Foster billed Medicare for 594 services in 2024, and Dr. Foster accepts Medicare assignment.
Does Dr. Clayton Lee Foster offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Foster as offering telehealth services.
Show 10 more questionsShow fewer questions
What is Dr. Clayton Lee Foster's MIPS score?
Dr. Foster's MIPS final score for performance year 2024 is 97 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Clayton Lee Foster see?
CMS counts 123 Medicare patients who saw Dr. Foster in 2024, with an average age of 74.
Is Dr. Clayton Lee Foster board certified?
Yes. Dr. Foster is board certified in infectious disease by the American Board of Internal Medicine.
What services does Dr. Clayton Lee Foster bill to Medicare?
In 2024, Dr. Foster's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Clayton Lee Foster go to medical school?
Dr. Foster graduated from University of Alabama School of Medicine in 2011.
What drugs does Dr. Clayton Lee Foster prescribe most?
In 2024 Medicare Part D data, Dr. Foster's most prescribed drugs by claims were Azithromycin, Ethambutol HCl and Ciprofloxacin HCl.
Has Dr. Clayton Lee Foster received payments from drug or device companies?
CMS Open Payments shows $3,974 in general payments to Dr. Foster from 14 companies from 2016 to 2025. The largest total came from Insmed, Inc.
How long has Dr. Clayton Lee Foster been practicing?
Dr. Foster graduated from medical school in 2011, 15 years ago.
Does Dr. Clayton Lee Foster do research?
Dmand AI links 6 publications to Dr. Foster, published from 2015 to 2025.
Who does Dr. Clayton Lee Foster publish with?
Dr. Foster's most frequent co-authors are Kristine M. Erlandson, MD (3 shared papers), Mary Theresa Bessesen, MD (1 shared paper) and Chase Stuart Dean, MD (1 shared paper).
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