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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

STEPHEN PATRICK MCQUILLAN D.O.
NPI 1831623800
Internal Medicine in Philadelphia, PA

Active since April 17, 2017PECOS Enrolled
1650 MARKET ST STE 3600, PHILADELPHIA, PA 19103(855) 212-2273 Get Directions Write a Review

NPPES record last updated: October 11, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 11, 2026, Jul 4, 2021, Jun 21, 2019 and 1 more (4 updates tracked since 2017).

About Stephen Patrick Mcquillan D.o. NPPES

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

STEPHEN PATRICK MCQUILLAN D.O. (NPI 1831623800) is an individual internal medicine provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (OS023528) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1831623800
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameSTEPHEN PATRICK MCQUILLANCredential: D.O.
Location Address1650 MARKET ST STE 3600Philadelphia, PA 19103-7334
Mailing Address5410 Maryland Way Ste 400Brentwood, TN 37027-8087 · (855) 212-2273
Phone(855) 212-2273
Sole ProprietorNo
Enumeration DateApril 17, 2017
Last NPPES UpdateOctober 11, 20264 updates tracked since enumeration
NPPES CertifiedOctober 11, 2026
✔ NPI 1831623800 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in PA · OS023528✔ Licensed in VA · 0102208604✔ Licensed in MA · 1019995✔ Licensed in FL · OS20926✔ Licensed in SC · 92576✔ Licensed in CT · 77564✔ Licensed in NY · 295205
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.
1650 MARKET ST STE 3600, Philadelphia, PA 19103
Open in Google Maps ↗

Secondary Practice Locations 4

Location 15501 Old York Rd Ste 1Philadelphia, PA 19141-3098 · Phone (215) 456-7890
Location 27031 SW 62nd AveSouth Miami, FL 33143 · Phone (305) 284-7783
Location 31300 Roanoke AveRiverhead, NY 11901-2031 · Phone (631) 548-6000
Location 45410 Maryland Way Ste 400Brentwood, TN 37027-8087 · Phone (651) 461-2255

Other Identifiers 1

Medicaid102932408-0023PA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company).Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stephen Patrick Mcquillan D.o. 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

5

Medicare enrollment records show Stephen Mcquillan reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Monogram Health Professional Services Of New Jersey LLC
91 mi
Nephrology
140 E RIDGEWOOD AVE STE 415
Paramus, NJ 07652
  • Reassigned Medicare billing, New Jersey enrollment
  • 58 clinicians in this Medicare group
NPI 1578284246 (615) 673-4455
Monogram Health Professional Services Of Washington Dc PC
123 mi
Nephrology
1200 G ST NW STE 800
Washington, DC 20005
  • Reassigned Medicare billing, District of Columbia enrollment
  • 14 clinicians in this Medicare group
NPI 1962112326 (615) 673-4455
Monogram Health Professional Services Of North Carolina PC
389 mi
Nephrology
615 SAINT GEORGE SQUARE CT STE 300
Winston Salem, NC 27103
  • Reassigned Medicare billing, North Carolina enrollment
  • 31 clinicians in this Medicare group
NPI 1366162885 (615) 673-4455
Monogram Health Professional Services PC
690 mi
Nephrology
5410 MARYLAND WAY STE 400
Brentwood, TN 37027
  • Reassigned Medicare billing, District of Columbia, Massachusetts, Maryland, New Hampshire, Pennsylvania, South Carolina, Virginia and West Virginia enrollments
  • 67 clinicians in this Medicare group
NPI 1134739089 (615) 465-8684
Monogram Health Professional Services Of Florida LLC
761 mi
Nephrology
4720 SALISBURY RD
Jacksonville, FL 32256
  • Reassigned Medicare billing, Florida enrollment
  • 98 clinicians in this Medicare group
NPI 1538883111 (615) 673-4455

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 19103 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
$137.17 typical visit price
range $59.88 – $180.99
Typical copayment $34.29 (range $14.97 – $45.24)
Most-billed visit code 99204
Established Patient
$105.21 typical visit price
range $19.30 – $147.29
Typical copayment $26.30 (range $4.82 – $36.82)
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.

ULYSSES SAMUEL ATOR PA-C, MPAS
Physician Assistant
1650 MARKET ST STE 3600
PHILADELPHIA, PA 19103
Philadelphia County (855) 212-2273
THE HOME CARE AGENCY CORP
In Home Supportive Care
1650 MARKET ST STE 3600
PHILADELPHIA, PA 19103
Philadelphia County (929) 333-3955
TIFFANY ANN LUNGER MA, LPC
Counselor (Professional)
1650 MARKET ST STE 3600
PHILADELPHIA, PA 19103
Philadelphia County (323) 205-7088
DEBORAH MICHELLE HITE LPC
Counselor (Professional)
1650 MARKET ST STE 3600
PHILADELPHIA, PA 19103
Philadelphia County (323) 205-7088
ASHLEY R ROUT CRNP
Nurse Practitioner (Acute Care)
1650 MARKET ST STE 3600
PHILADELPHIA, PA 19103
Philadelphia County (855) 212-2273
TRIUMPH HEALTHCARE SOLUTIONS, LLC
Early Intervention Provider Agency
1650 MARKET ST STE 3600
PHILADELPHIA, PA 19103
Philadelphia County (631) 918-9523
ANTHONY PERILLO LPC
Counselor (Professional)
1650 MARKET ST STE 3600
PHILADELPHIA, PA 19103
Philadelphia County (844) 843-7279
DIANE MARIE COUGHLAN CRNP
Nurse Practitioner
1650 MARKET ST STE 3600
PHILADELPHIA, PA 19103
Philadelphia County (855) 212-2273

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 Stephen Mcquillan's NPI number?

The NPI number for Stephen Mcquillan is 1831623800. It was assigned to this individual provider in the NPPES registry on April 17, 2017.

Where is Stephen Mcquillan located?

Stephen Mcquillan practices at 1650 Market St Ste 3600, Philadelphia, PA 19103. The listed phone number is (855) 212-2273.

What is Stephen Mcquillan's specialty?

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

Is Stephen Mcquillan enrolled in Medicare?

Yes. Stephen Mcquillan is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Stephen Mcquillan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Mcquillan reassigns Medicare benefits to 5 organizations: Monogram Health Professional Services Of New Jersey LLC (Paramus, NJ), Monogram Health Professional Services Of Washington Dc PC (Washington, DC), Monogram Health Professional Services Of North Carolina PC (Winston Salem, NC), Monogram Health Professional Services PC (Brentwood, TN) and Monogram Health Professional Services Of Florida LLC (Jacksonville, FL). 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 Stephen Mcquillan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stephen Mcquillan accept?

Health plans from Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Stephen Mcquillan 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 Stephen Mcquillan was last updated on October 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.