Dr. Stephen T. Keithahn, MD

  • Waimanalo, HI
  • Hospitalist
NPI1235157827PAC ID8426144528
Medicare services, 2023
267
Part D claims, 2024
21
Publications
1
Affiliated sites
2
Medical group
1
Practice address
41-1330 Kalanianaole Hwy, Waimanalo, HI 96795
Practice phone
Call (808) 259-7948
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Waimānalo Health Center (1330 Kalanianaole Hwy)

FQHC - Main Site · Waimanalo, Hawaii

See all 3 affiliations

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Dr. Stephen T. Keithahn is a hospitalist in Waimanalo, Hawaii

Dr. Keithahn practices at Waimānalo Health Center (1330 Kalanianaole Hwy) in Waimanalo, Hawaii.

Dr. Keithahn's NPI, 1235157827, was assigned on July 18, 2006. Dr. Keithahn graduated from Duke University School Of Medicine in 1989. Dr. Keithahn holds Missouri license 111583.

NPI and contact details
Medicare PAC ID
8426144528
NPI enumeration date
July 18, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(808) 259-7948
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
63
Medical school graduation
1989

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

Dr. Stephen T. Keithahn practices at Waimānalo Health Center (1330 Kalanianaole Hwy) in Waimanalo, Hawaii

Dr. Keithahn's primary practice is Waimānalo Health Center (1330 Kalanianaole Hwy), at 41-1330 Kalanianaole Hwy, Waimanalo, HI 96795 in Honolulu County. The practice phone is (808) 259-7948.

  • Waimānalo Health Center (1330 Kalanianaole Hwy)
    41-1330 Kalanianaole Hwy, Waimanalo, HI 96795 · Honolulu CountyPhone(808) 259-7948

Source: Dmand AI Affiliation Data

Dr. Stephen T. Keithahn is affiliated with 2 sites of care and 1 medical group

Dr. Keithahn's primary practice is Waimānalo Health Center (1330 Kalanianaole Hwy) in Waimanalo, Hawaii. The medical group on file is Waimānalo Health Center. Dmand AI also links Dr. Keithahn to 1 more community health center, named with a free account. Dr. Keithahn's employer is on file too: a community health center (fqhc).

See all 3 affiliations for Dr. Keithahn

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

Dmand AI tracks the EHR system at Dr. Stephen T. Keithahn's practice

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

EHR by site
SiteEHR vendor and product
Waimānalo Health Center (1330 Kalanianaole Hwy)Available with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Stephen T. Keithahn is one of 159 hospitalists in Hawaii

Hospitalist is Dr. Keithahn's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Keithahn is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Keithahn's licenses on file in 4 states: Missouri, California, Hawaii and Minnesota.

Specialties and state licenses

  • Hospitalist, MissouriPrimaryLicense 111583 · 1996 to 2026 · taxonomy 208M00000X
  • California licenseSince 1994
  • Hawaii license2024 to 2026
  • Minnesota license1990 to 1996

Clinical focus

Dmand AI lists acute diabetes, acute respiratory failure, cardiac arrhythmia, cellulitis, circulatory problems in extremities, electrolyte disorders, gastrointestinal bleeding and gastrointestinal obstruction among the conditions Dr. Keithahn treats.

Hospitalists near Dr. Keithahn

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. Stephen T. Keithahn billed Medicare for 267 services in 2023

CMS data shows 267 Medicare services from Dr. Keithahn across 4 procedure codes in 2023. Medicare paid $19,745 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2023267
Paid by Medicare$19,745
Procedure codes4

Dr. Keithahn's Medicare services by type, 2022 to 2023

  • 2022
  • 2023
Office and hospital visits
2022: 1792023: 26749%
Other services
2022: 122023: 0100%

Dr. Keithahn compared with the Hawaii median for hospitalists, 2023

  • Dr. Keithahn
  • Hawaii median
Medicare services
267vs 22419% above
Part D claims
247vs 783.2 times

Medians across 157 hospitalists in Hawaii with Dmand AI profiles that report each measure.

Dr. Keithahn'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.

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

Dr. Stephen T. Keithahn's patients have a median age of 38

Across all payers, Dmand AI patient panel data puts Dr. Keithahn's median patient age at 38, with 47% women.

Dr. Keithahn's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 38

Patient panel by sex, all payers

  • Women47%
  • Men53%

Source: Dmand AI Patient Panel Data

Dr. Stephen T. Keithahn wrote 21 Medicare Part D claims in 2024

In 2024, Dr. Keithahn wrote 21 Medicare Part D claims. 86% of them were for generic drugs. They cover 11 drugs, with $2,397 in total drug cost. In 2022, CMS named 2,557 claims across 65 drugs.

Part D claims, 202421
Drugs named by CMS11
Total drug cost$2,397

Dr. Keithahn's Part D claims by kind of drug, 2024

  • Generic18 claims86%
  • Brand-name and other3 claims14%

Dr. Keithahn'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: 2,5572023: 24790%

Drugs named by CMS: 11 in 2023, 65 in 2022.

See all prescribing by Dr. Keithahn

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. Stephen T. Keithahn takes part in Medicare

Dr. Keithahn 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. Stephen T. Keithahn has 1 publication on record

Dmand AI links 1 paper to Dr. Keithahn.

Papers1

Recent publications by Dr. Keithahn

See all 1 publications and co-authors

See who Dr. Keithahn researches with

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

How network discovery works

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

Dr. Stephen T. Keithahn has 3 awards and honors on record

Dmand AI lists 3 awards for Dr. Keithahn, most recently Laureate Award in 2018.

Awards and honors for Dr. Keithahn

  1. 2018
    • Laureate Award
  2. 2014
    • Regional Top Doctor
  3. Undated
    • AAP Fellow

Source: Dmand AI Professional Profile Data

Dr. Stephen T. Keithahn graduated from Duke University School Of Medicine

Dr. Keithahn graduated from Duke University School Of Medicine in 1989. Dr. Keithahn is a member of AAP and ACP.

  1. Medical schoolDuke University School Of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in pediatricsAmerican Board of Pediatrics

Source: Dmand AI Professional Profile Data

Dr. Stephen T. Keithahn accepts plans from 15 insurance carriers

Dr. Keithahn is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +7 more carriersWith a free account

Plan types Dr. Keithahn accepts, by number of carriers

  1. PPO11
  2. Medicare7
  3. HMO6
  4. POS4
  5. EPO3

Source: Dmand AI Insurance Network Data

Sources for Dr. Stephen T. Keithahn'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 Data
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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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 Dr. Stephen T. Keithahn

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. Stephen T. Keithahn's NPI number?

Dr. Stephen T. Keithahn's NPI number is 1235157827. It was assigned on July 18, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Stephen T. Keithahn?

Dr. Stephen T. Keithahn is a hospitalist in Waimanalo, Hawaii. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).

Where does Dr. Stephen T. Keithahn practice?

Dr. Keithahn practices at 41-1330 Kalanianaole Hwy, Waimanalo, HI 96795. Dr. Keithahn's primary practice is Waimānalo Health Center (1330 Kalanianaole Hwy) in Waimanalo, Hawaii. Dmand AI also links Dr. Keithahn to 1 community health center.

What is Dr. Stephen T. Keithahn's office phone number?

The practice phone on file for Dr. Keithahn is (808) 259-7948.

What is Dr. Stephen T. Keithahn's medical license number?

Dr. Keithahn holds Missouri license 111583, one of the licenses on file in 4 states.

Which states has Dr. Stephen T. Keithahn been licensed in?

Dmand AI has state licenses on file for Dr. Keithahn in Missouri (1996 to 2026), California (since 1994), Hawaii (2024 to 2026) and Minnesota (1990 to 1996).

What medical group is Dr. Stephen T. Keithahn part of?

Dr. Keithahn is linked to Waimānalo Health Center.

Does Dr. Stephen T. Keithahn accept Medicare?

Yes. CMS data shows Dr. Keithahn billed Medicare for 267 services in 2023, and Dr. Keithahn accepts Medicare assignment.

Is Dr. Stephen T. Keithahn board certified?

Yes. Dr. Keithahn is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Stephen T. Keithahn bill to Medicare?

In 2023, Dr. Keithahn's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99238).

Show 5 more questionsShow fewer questions

Where did Dr. Stephen T. Keithahn go to medical school?

Dr. Keithahn graduated from Duke University School Of Medicine in 1989.

What drugs does Dr. Stephen T. Keithahn prescribe most?

In 2023 Medicare Part D data, Dr. Keithahn's most prescribed drugs by claims were Carvedilol, Pantoprazole Sodium and Amlodipine Besylate.

How long has Dr. Stephen T. Keithahn been practicing?

Dr. Keithahn graduated from medical school in 1989, 37 years ago.

Does Dr. Stephen T. Keithahn do research?

Dmand AI links 1 publication to Dr. Keithahn.

What insurance does Dr. Stephen T. Keithahn accept?

Dr. Keithahn is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

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