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DR. NATHAN CHI YONG TAN M.D.
NPI 1023079761
Family Medicine in San Jose, Saipan, MP

Active since March 31, 2006PECOS Enrolled
BEACH ROAD, OLEAI BUSINESS CENTER, SUITE 108-112, SAN JOSE, SAIPAN, MP 96950(670) 235-0994(670) 234-3742 Get Directions Write a Review

NPPES record last updated: June 8, 2009. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Nathan Chi Yong Tan M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. NATHAN CHI YONG TAN M.D. (NPI 1023079761) is an individual family medicine provider in San Jose, Saipan, Mariana Islands, licensed in Mariana Islands (0306) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1023079761
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. NATHAN CHI YONG TANCredential: M.D.
Location AddressBEACH ROAD, OLEAI BUSINESS CENTER, SUITE 108-112San Jose, Saipan, MP 96950
Mailing AddressPo Box 500118Saipan, MP 96950-0118 · (670) 235-0994 · Fax (670) 234-3742
Phone(670) 235-0994
Fax(670) 234-3742
Sole ProprietorNo
Enumeration DateMarch 31, 2006
Last NPPES UpdateJune 8, 2009
✔ NPI 1023079761 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in MP · 0306
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HMSA.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Nathan Chi Yong Tan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Nathan Tan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Kokua Kalihi Valley Comprehensive Family Services
Federally Qualified Health Center (FQHC)
2239 N SCHOOL ST
Honolulu, HI 96819
  • Reassigned Medicare billing, Hawaii enrollment
  • 38 clinicians in this Medicare group
NPI 1114074622 (808) 791-9400
Medical Associates Of The Pacific LLC
Internal Medicine
MARINA HEIGHTS BUSINESS PARK, SUITE 100
Saipan, MP 96950
  • Reassigned Medicare billing, Northern Mariana Islands enrollment
  • 11 clinicians in this Medicare group
NPI 1144310723 (670) 323-9000

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 96950 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$92.50 typical visit price
range $60.53 – $180.05
Typical copayment $23.12 (range $15.13 – $45.01)
Most-billed visit code 99203
Established Patient
$105.65 typical visit price
range $20.09 – $147.56
Typical copayment $26.41 (range $5.02 – $36.89)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Nathan Tan's NPI number?

The NPI number for Nathan Tan is 1023079761. It was assigned to this individual provider in the NPPES registry on March 31, 2006.

Where is Nathan Tan located?

Nathan Tan practices at Beach Road, Oleai Business Center Suite 108-112, San Jose, Saipan, MP 96950. The listed phone number is (670) 235-0994.

What is Nathan Tan's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Nathan Tan enrolled in Medicare?

Yes. Nathan Tan is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Nathan Tan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Tan reassigns Medicare benefits to 2 organizations: Kokua Kalihi Valley Comprehensive Family Services (Honolulu, HI) and Medical Associates Of The Pacific LLC (Saipan, MP). 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 Nathan Tan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nathan Tan accept?

Health plans from HMSA list Nathan Tan 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 Nathan Tan was last updated on June 8, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.