DR. PHILIP SEO MD, MHS
NPI 1225084130
Internal Medicine - Rheumatology in Baltimore, MD
About Dr. Philip Seo Md, Mhs NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PHILIP SEO MD, MHS (NPI 1225084130) is an individual rheumatology provider in Baltimore, Maryland, licensed in Maryland (D56019) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of Columbia University College Of Physicians And Surgeons (1997).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Philip Seo Md, Mhs is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Philip Seo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21224
- Reassigned Medicare billing, Maryland enrollment
- 4,483 clinicians in this Medicare group
Baltimore, MD 21287
- Reassigned Medicare billing, Maryland enrollment
- 338 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21224 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
BALTIMORE, MD 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
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 Philip Seo's NPI number?
The NPI number for Philip Seo is 1225084130. It was assigned to this individual provider in the NPPES registry on May 25, 2006.
Where is Philip Seo located?
Philip Seo practices at 5501 Hopkins Bayview Cir Jhaac Room 1b.1a, Baltimore, MD 21224. The listed phone number is (410) 550-6813.
What is Philip Seo's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Philip Seo enrolled in Medicare?
Yes. Philip Seo is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Philip Seo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Philip Seo reassigns Medicare benefits to 2 organizations: Johns Hopkins University (Baltimore, MD) and Johns Hopkins University (Baltimore, MD). 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 Philip 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 Philip Seo was last updated on February 18, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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. Philip Seo, MD, MHS · NPI 1225084130
Rheumatology physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since May 25, 2006.
## Identity
- **NPI:** 1225084130 (Entity type: Individual)
- **Enumerated:** May 25, 2006
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** D56019 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 5501 HOPKINS BAYVIEW CIR, JHAAC ROOM 1B.1A, Baltimore, MD 21224-6821
- **Phone:** (410) 550-6813
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Johns Hopkins University (NPI 1306810619, Baltimore, MD); Johns Hopkins University (NPI 1902332133, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Columbia University College Of Physicians And Surgeons, class of 1997
## Record status
- **NPPES last updated:** February 18, 2013
- **Other identifiers:** Medicaid 905500200 (MD); Medicare PIN KR62J913 (MD); Medicare UPIN H20786
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Source: [NPI Profile](https://npiprofile.com/npi/1225084130) · Data from the CMS NPPES public registry.