Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Stephen Patrick McQuillan, DO

Individual provider Internal Medicine Physician · NPI 1831623800

Stephen Patrick McQuillan, DO is an Internal Medicine Physician in Philadelphia, Pennsylvania. Works from 5 locations. Licensed in Connecticut, Florida, Massachusetts and New York and 3 more.

Licensed in
CT, FL, MA, NY, PA, SC
In the registry since
2017
Specialties on file
7
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

1650 Market St Ste 3600
Philadelphia, PA 19103-7334
Phone: (855) 212-2273
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 7031 Sw 62nd Ave, South Miami, FL 33143 — (305) 284-7783
  • 1300 Roanoke Ave, Riverhead, NY 11901-2031 — (631) 548-6000
  • 5501 Old York Rd Ste 1, Philadelphia, PA 19141-3098 — (215) 456-7890
  • 5410 Maryland Way Ste 400, Brentwood, TN 37027-8087 — (651) 461-2255

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence OS023528 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 0102208604 (VA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 1019995 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence OS20926 (FL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 92576 (SC)
Internal Medicine Physician Taxonomy 207R00000X · Licence 77564 (CT)
Internal Medicine Physician Taxonomy 207R00000X · Licence 295205 (NY)

Record details

NPI number1831623800
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 17, 2017
Last updated in NPPESOctober 11, 2026
Certification dateOctober 11, 2026

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