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DR. CHANGJIN SEO M.D.
NPI 1689986432
Emergency Medicine in Astoria, NY

Active since July 09, 2010PECOS EnrolledAccepts Medicare Assignment
4502 DITMARS BLVD APT 503, ASTORIA, NY 11105(917) 478-7084 Get Directions Write a Review

NPPES record last updated: January 31, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 31, 2022, Dec 3, 2021 (2 updates tracked since 2021).

About Dr. Changjin Seo M.d. NPPES

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

DR. CHANGJIN SEO M.D. (NPI 1689986432) is an individual emergency medicine provider in Astoria, New York, licensed in Virginia (0101253838) and active in the NPI registry since July 2010. He is enrolled in Medicare PECOS and is a graduate of Other (2010).

NPPES Registry Identity

NPI1689986432
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. CHANGJIN SEOCredential: M.D.
Location Address4502 DITMARS BLVD APT 503Astoria, NY 11105-1353
Mailing Address4502 Ditmars Blvd Apt 503Astoria, NY 11105-1353 · (917) 478-7084
Phone(917) 478-7084
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateJuly 9, 2010
Last NPPES UpdateJanuary 31, 20222 updates tracked since enumeration
NPPES CertifiedJanuary 31, 2022
✔ NPI 1689986432 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in VA · 0101253838
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
4502 DITMARS BLVD APT 503, Astoria, NY 11105
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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. Changjin Seo 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.

PECOS PAC ID2769625607
PECOS Enrollment IDI20130826000401, I20230725001128
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 Changjin Seo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc
186 mi
Health Maintenance Organization
888 BESTGATE ROAD
Annapolis, MD 21401
  • Reassigned Medicare billing, District of Columbia and Virginia enrollments
  • Also billed through NPI 1225156367 (Virginia)
  • 2,492 clinicians in this Medicare group
NPI 1952461816 (410) 571-7300
Commonwealth Emergency Physicians PC
223 mi
Emergency Medicine
44045 RIVERSIDE PARKWAY, LOUDOUN HOSPITAL CENTER
Leesburg, VA 20176
  • Reassigned Medicare billing, District of Columbia enrollment
  • 134 clinicians in this Medicare group
NPI 1598723082 (703) 858-6040

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 11105 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
$104.17 typical visit price
range $67.00 – $201.98
Typical copayment $26.04 (range $16.75 – $50.49)
Most-billed visit code 99203
Established Patient
$116.96 typical visit price
range $21.62 – $163.52
Typical copayment $29.24 (range $5.40 – $40.88)
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 Changjin Seo's NPI number?

The NPI number for Changjin Seo is 1689986432. It was assigned to this individual provider in the NPPES registry on July 9, 2010.

Where is Changjin Seo located?

Changjin Seo practices at 4502 Ditmars Blvd Apt 503, Astoria, NY 11105. The listed phone number is (917) 478-7084.

What is Changjin Seo's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Changjin Seo enrolled in Medicare?

Yes. Changjin Seo 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 Changjin Seo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Changjin Seo reassigns Medicare benefits to 2 organizations: Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Annapolis, MD) and Commonwealth Emergency Physicians PC (Leesburg, VA). 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 Changjin Seo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Changjin Seo was last updated on January 31, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.