Warren B. Sparks, MD
Emergency Medicine Physician · Kalaheo, HI
Warren B. Sparks, MD is an emergency medicine physician with a practice address in Kalaheo, Hawaii, and NPI 1023045440, issued on Jun 28, 2006. Check the license (Hawaii 4105, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Warren B. Sparks
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 4105 HI
Self-reported in NPPES; status is on the state search - Practice location
- 3791 Lohe RD, Kalaheo, HI 96741
- Phone
- (541) 602-0306
- Enumerated
- Jun 28, 2006
- Record last updated
- Aug 6, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (541) 610-1647
- Medicaid IDs
- 8351561 WA
057237 OR
XPY186579 CA - Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 370 in Hawaii → Look up another NPI →
Verify Warren B. Sparks in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license 4105Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% fewer Medicare Part D claims than the average emergency medicine physician in 2024
110 Medicare Part D claims for 21 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Carvedilol12 claims
- Hydroxychloroquine Sulfate11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Warren B. Sparks among 370 emergency medicine physician records in Hawaii
Warren B. Sparks, MD is one of 370 emergency medicine physician records with a practice address in Hawaii. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 64% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 55% of these records are
- Record last updated2019 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 emergency medicine physician records list a practice address in Kalaheo
They are 2 of the 79 NPPES records with a practice address in Kalaheo, and 370 emergency medicine physician records in Hawaii.
All 370 in Hawaii → Every provider in Kalaheo → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Eric Wortmann, M.D.Kalaheo, HI 967411457465577
- Gregory Calkins, M.D.Kamuela, HI 967431043291206
- Marisa Hori, M.D.Kamuela, HI 967431801195359
- Yizheng LoganKamuela, HI 967431568356533
- Sharon Lowrie, M.D.Kaneohe, HI 967441679611289
- Alexander Anshus, MDKailua, HI 967341255891735
- Frederick Burkle, MDKailua, HI 967341851808778
- Ryan Conklin, MDKailua, HI 967341104405117
Common questions
What is Warren B. Sparks, MD's NPI number?
Warren B. Sparks, MD's National Provider Identifier (NPI) is 1023045440, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Warren B. Sparks, MD located?
The NPPES record lists a practice address at 3791 Lohe RD, Kalaheo, HI, 96741. Phone: (541) 602-0306. Providers update this record themselves, so call before visiting.
How can I verify Warren B. Sparks, MD's license?
NPPES lists Hawaii license number 4105, as entered by the provider. Search the Hawaii Medical Board at https://cca.hawaii.gov/pvl/boards/medical/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Warren B. Sparks, MD prescribe under Medicare Part D?
In 2024, Warren B. Sparks, MD had 110 Medicare Part D claims for 21 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.