Mark Ramil Villarin, M.D.
Obstetrics & Gynecology Physician · Kamuela, HI
Mark Ramil Villarin, M.D. is an obstetrics & gynecology physician with a practice address in Kamuela, Hawaii, and NPI 1851711592, issued on Apr 21, 2014. Check the license (Hawaii MD19465, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark Ramil Villarin
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- MD19465 HI
Self-reported in NPPES; status is on the state search - Practice location
- 66-1125 Mamalahoa Highway, Kamuela, HI 96743
- Phone
- (808) 885-4444
- Enumerated
- Apr 21, 2014
- Record last updated
- Dec 2, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180806000971); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 288 in Hawaii → Look up another NPI →
Verify Mark Ramil Villarin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD19465Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
22 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Bills Medicare through 4 group practices
- Kapiolani Medical Center For Women And ChildrenHonolulu, HI
- Kapiolani Medical SpecialistsHonolulu, HI
- Waianae District Comprehensive Health And Hospital Board IncKapolei, HI
- Waikiki HealthHonolulu, HI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Ramil Villarin among 288 obstetrics & gynecology physician records in Hawaii
Mark Ramil Villarin, M.D. is one of 288 obstetrics & gynecology physician records with a practice address in Hawaii. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 71% of them.
- NPI issued2014 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2014 · median 2006 among the 158 with a school on file
- Record last updated2020 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Hawaii
There are 288 obstetrics & gynecology physician records in Hawaii.
All 288 in Hawaii → Every provider in Kamuela → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Paul Johnston, MDKamuela, HI 967431174606131
- Gerard Szczygiel, DOKamuela, HI 967431467436006
- Li-Duen Clark, M.D.Kaneohe, HI 967441265731038
- Jean-Paul Clark, M.D.Kaneohe, HI 967441538468301
- Melissa Lawrence, MDKaneohe, HI 967441669572376
- Eileen Ogasawara-Chun, MDKaneohe, HI 967441760583876
- Alan Papst, M.D.Kaneohe, HI 967441356491799
- Ken Clayton, D.O.Kailua Kona, HI 967401215010194
Common questions
What is Mark Ramil Villarin, M.D.'s NPI number?
Mark Ramil Villarin, M.D.'s National Provider Identifier (NPI) is 1851711592, issued on Apr 21, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Mark Ramil Villarin, M.D. located?
The NPPES record lists a practice address at 66-1125 Mamalahoa Highway, Kamuela, HI, 96743. Phone: (808) 885-4444. Providers update this record themselves, so call before visiting.
How can I verify Mark Ramil Villarin, M.D.'s license?
NPPES lists Hawaii license number MD19465, 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 Mark Ramil Villarin, M.D. prescribe under Medicare Part D?
In 2024, Mark Ramil Villarin, M.D. had 22 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. 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.