1. Home
  2. Directory
  3. New York
  4. Oceanside
  5. Internal Medicine
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. CHAN NYEIN HTET MD
NPI 1336880079
Internal Medicine in Oceanside, NY

Active since April 05, 2022PECOS EnrolledAccepts Medicare Assignment
1 HEALTHY WAY, OCEANSIDE, NY 11572(516) 632-3666(516) 632-3667 Get Directions Write a Review

NPPES record last updated: October 2, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 2, 2026, Apr 6, 2022 (2 updates tracked since 2022).

About Dr. Chan Nyein Htet Md NPPES

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

DR. CHAN NYEIN HTET MD (NPI 1336880079) is an individual internal medicine provider in Oceanside, New York, licensed in New York (338218) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS, is affiliated with Mount Sinai South Nassau, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1336880079
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. CHAN NYEIN HTETCredential: MD
Location Address1 HEALTHY WAYOceanside, NY 11572-1551
Mailing Address1 Healthy WayOceanside, NY 11572-1551 · (516) 632-3666 · Fax (516) 632-3667
Phone(516) 632-3666
Fax(516) 632-3667
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateApril 5, 2022
Last NPPES UpdateOctober 2, 20262 updates tracked since enumeration
NPPES CertifiedOctober 2, 2026
✔ NPI 1336880079 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 338218
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1 HEALTHY WAY, Oceanside, NY 11572
Open in Google Maps ↗

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. Chan Nyein Htet Md 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.

PECOS PAC ID2163997230
PECOS Enrollment IDI20260407000013
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 Chan Nyein Htet reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mount Sinai School Of Medicine
Same address
Body Imaging
1 HEALTHY WAY
Oceanside, NY 11572
  • Reassigned Medicare billing, New York enrollment
  • 302 clinicians in this Medicare group
NPI 1396212536 (516) 632-3921
North Shore Medical Group Of The Mount Sinai School Of Medicine
7.1 mi
Internal Medicine
2020 WANTAGH AVE
Wantagh, NY 11793
  • Reassigned Medicare billing, New York enrollment
  • 572 clinicians in this Medicare group
NPI 1992417323 (516) 961-4545

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mount Sinai South Nassau

Acute Care Hospitals · Oceanside, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330198
LocationOne Healthy WayOceanside, NY 11572 · Nassau County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11572 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
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. BENJAMIN WALLBRUNN FELDER DO
Internal Medicine
1 HEALTHY WAY
OCEANSIDE, NY 11572
Nassau County (516) 632-3666
MANISH KUMAR MD
Pediatrics
1 HEALTHY WAY
OCEANSIDE, NY 11572
Nassau County (516) 632-3000
JANICE RANGEL CAMPBELL MSN, LCCE, IBCLC
Registered Nurse (Lactation Consultant)
1 HEALTHY WAY
OCEANSIDE, NY 11572
Nassau County (516) 632-4989
PARBATI KC FNP
Nurse Practitioner (Family)
1 HEALTHY WAY
OCEANSIDE, NY 11572
Nassau County (516) 632-3000
TARYN MCNEIL NP
Nurse Practitioner (Adult Health)
1 HEALTHY WAY
OCEANSIDE, NY 11572
Nassau County (516) 632-3000
DR. DAVID ELLIOT BERNSTEIN MD
Hospitalist
1 HEALTHY WAY
OCEANSIDE, NY 11572
Nassau County (516) 362-3000
STEPHANIE JOSEPH CRNA
Nurse Anesthetist, Certified Registered
1 HEALTHY WAY
OCEANSIDE, NY 11572
Nassau County (516) 632-3000
DR. JONATHAN MASHIEH DO
Student in an Organized Health Care Education/Training Program
1 HEALTHY WAY
OCEANSIDE, NY 11572
Nassau County (516) 632-3000

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 Chan Nyein Htet's NPI number?

The NPI number for Chan Nyein Htet is 1336880079. It was assigned to this individual provider in the NPPES registry on April 5, 2022.

Where is Chan Nyein Htet located?

Chan Nyein Htet practices at 1 Healthy Way, Oceanside, NY 11572. The listed phone number is (516) 632-3666.

What is Chan Nyein Htet's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Chan Nyein Htet enrolled in Medicare?

Yes. Chan Nyein Htet 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 Chan Nyein Htet's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Chan Nyein Htet reassigns Medicare benefits to 2 organizations: Mount Sinai School Of Medicine (Oceanside, NY) and North Shore Medical Group Of The Mount Sinai School Of Medicine (Wantagh, NY). 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 Chan Nyein Htet's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Chan Nyein Htet affiliated with any hospitals?

According to CMS data, Chan Nyein Htet is affiliated with Mount Sinai South Nassau.

When was this NPI record last updated?

The NPPES record for Chan Nyein Htet was last updated on October 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 days 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.