DR. MARK RAMIL VILLARIN M.D.
NPI 1851711592
Obstetrics & Gynecology in Kamuela, HI
About Dr. Mark Ramil Villarin M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK RAMIL VILLARIN M.D. (NPI 1851711592) is an individual obstetrics & gynecology provider in Kamuela, Hawaii, licensed in Hawaii (MD19465) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS and is a graduate of Loma Linda University School Of Medicine (2014).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Mark Ramil Villarin M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Mark Villarin reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Honolulu, HI 96816
- Reassigned Medicare billing, Hawaii enrollment
- 32 clinicians in this Medicare group
Honolulu, HI 96826
- Reassigned Medicare billing, Hawaii enrollment
- 262 clinicians in this Medicare group
Honolulu, HI 96826
- Reassigned Medicare billing, Hawaii enrollment
- 370 clinicians in this Medicare group
Waipahu, HI 96797
- Reassigned Medicare billing, Hawaii enrollment
- Medicare enrollment name: Waianae District Comprehensive Health And Hospital Board Incorporated
- 240 clinicians in this Medicare group
Wahiawa, HI 96786
- Reassigned Medicare billing, Hawaii enrollment
- 50 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 96743 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mark Villarin's NPI number?
The NPI number for Mark Villarin is 1851711592. It was assigned to this individual provider in the NPPES registry on April 21, 2014.
Where is Mark Villarin located?
Mark Villarin practices at 66-1125 Mamalahoa Highway, Kamuela, HI 96743. The listed phone number is (808) 885-4444.
What is Mark Villarin's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Mark Villarin enrolled in Medicare?
Yes. Mark Villarin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Mark Villarin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Villarin reassigns Medicare benefits to 5 organizations: Waikiki Health (Honolulu, HI), Kapiolani Medical Center For Women & Children (Honolulu, HI), Kapiolani Medical Specialists (Honolulu, HI), Waianae District Comprehensive Health And Hospital Board, Inc (Waipahu, HI) and The Wahiawa Center For Community Health (Wahiawa, HI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Villarin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Villarin accept?
Health plans from HMSA list Mark Villarin as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Mark Villarin was last updated on December 2, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Mark Ramil Villarin, M.D. · NPI 1851711592
Obstetrics & Gynecology physician in Kamuela, Hawaii. Individual provider, active in the CMS NPPES registry since April 21, 2014.
## Identity
- **NPI:** 1851711592 (Entity type: Individual)
- **Enumerated:** April 21, 2014
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** MD19465 (Hawaii)
- **Sole proprietor:** No
## Practice location
- **Address:** 66-1125 MAMALAHOA HIGHWAY, Kamuela, HI 96743
- **Phone:** (808) 885-4444
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Waikiki Health (NPI 1528359791, Honolulu, HI); Kapiolani Medical Center For Women & Children (NPI 1548215692, Honolulu, HI); Kapiolani Medical Specialists (NPI 1124071014, Honolulu, HI); Waianae District Comprehensive Health And Hospital Board, Inc (NPI 1447727318, Waipahu, HI); The Wahiawa Center For Community Health (NPI 1992176283, Wahiawa, HI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loma Linda University School Of Medicine, class of 2014
## Record status
- **NPPES last updated:** December 2, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1851711592) · Data from the CMS NPPES public registry.