MARK JOHN SEAMON MD
NPI 1184780546
Surgery - Surgical Critical Care in Philadelphia, PA

Active since December 29, 2006PECOS EnrolledAccepts Medicare Assignment
85.48/100
CMS Quality Rating
51 NORTH 39TH STREET, PHILADELPHIA, PA 19104(215) 349-8310(215) 724-3560 Get Directions Write a Review

NPPES record last updated: May 28, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 28, 2026, May 21, 2026, Jan 5, 2026 and 1 more (4 updates tracked since 2019).

About Mark John Seamon Md NPPES

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

MARK JOHN SEAMON MD (NPI 1184780546) is an individual surgical critical care provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD424459) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with Hospital Of Univ Of Pennsylvania, and is a graduate of University Of Pittsburgh School Of Medicine (2001).

NPPES Registry Identity

NPI1184780546
Entity TypeIndividualMale
Primary Taxonomy2086S0102X
Provider Legal NameMARK JOHN SEAMONCredential: MD
Location Address51 NORTH 39TH STREETPhiladelphia, PA 19104-2640
Mailing Address51 North 39th StreetPhiladelphia, PA 19104-2640 · (215) 349-8310 · Fax (215) 724-3560
Fax(215) 724-3560
Sole ProprietorNo
Medical School CMSUniversity Of Pittsburgh School Of MedicineGraduated 2001
Enumeration DateDecember 29, 2006
Last NPPES UpdateMay 28, 20264 updates tracked since enumeration
NPPES CertifiedMay 28, 2026
NPI 1184780546 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtySurgery · Surgical Critical CareAllopathic & Osteopathic Physicians
Taxonomy Code2086S0102X
License Licensed in PA · MD424459
Definition
A surgeon with expertise in the management of the critically ill and postoperative patient, particularly the trauma victim, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedSurgery · Trauma SurgeryTaxonomy 2086S0127X · License MD424459 (PA)
51 NORTH 39TH STREET, Philadelphia, PA 19104

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mark John Seamon 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 ID9830287119
PECOS Enrollment IDI20071120000513
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.

Areas of Expertise CMS Part B claims 4

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.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
59 services22 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
55 services27 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
38 services18 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
17 services17 patients

Hospital Affiliations CMS Care Compare 2

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

Hospital Of Univ Of Pennsylvania

Acute Care Hospitals · Philadelphia, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390111
Location34th & Spruce StsPhiladelphia, PA 19104 · Philadelphia County
Emergency services Birthing friendly

Penn Presbyterian Medical Center

Acute Care Hospitals · Philadelphia, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number390223
Location51 North 39th StreetPhiladelphia, PA 19104 · Philadelphia County
Emergency services

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.

85.48/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality73.6
Promoting Interoperability100
Improvement Activities40

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.

Internal Medicine
51 NORTH 39TH STREET, MAB, SUITE 102
PHILADELPHIA, PA 19104
Internal Medicine (Cardiovascular Disease)
51 NORTH 39TH STREET, 4 PHI
PHILADELPHIA, PA 19104
Internal Medicine (Cardiovascular Disease)
51 NORTH 39TH STREET, 4 PHI
PHILADELPHIA, PA 19104
Nurse Practitioner (Family)
51 NORTH 39TH STREET
PHILADELPHIA, PA 19104
Internal Medicine (Infectious Disease)
51 NORTH 39TH STREET, 3910 BUILDING, 2ND FLOOR
PHILADELPHIA, PA 19104
Nurse Anesthetist, Certified Registered
51 NORTH 39TH STREET, 223 WRIGHT SAUNDERS
PHILADELPHIA, PA 19104
Internal Medicine (Interventional Cardiology)
51 NORTH 39TH STREET, 4 PHI
PHILADELPHIA, PA 19104
Family Medicine
51 NORTH 39TH STREET, 7TH MUTCH BLDG
PHILADELPHIA, PA 19104

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 Seamon's NPI number?

The NPI number for Mark Seamon is 1184780546. It was assigned to this individual provider in the NPPES registry on December 29, 2006.

Where is Mark Seamon located?

Mark Seamon practices at 51 North 39th Street, Philadelphia, PA 19104. The listed phone number is (215) 349-8310.

What is Mark Seamon's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Surgical Critical Care, with taxonomy code 2086S0102X.

Is Mark Seamon enrolled in Medicare?

Yes. Mark Seamon 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.

What insurance does Mark Seamon accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Mark Seamon 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.

Is Mark Seamon affiliated with any hospitals?

According to CMS data, Mark Seamon is affiliated with Hospital Of Univ Of Pennsylvania and Penn Presbyterian Medical Center.

When was this NPI record last updated?

The NPPES record for Mark Seamon was last updated on May 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.