Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Sean Anthony Isaac Jr., MD

Individual provider Anesthesiology Physician · NPI 1386835767

Sean Anthony Isaac Jr., MD practises Anesthesiology in Baltimore, Maryland. Graduated from New York Medical College in 2003, 23 years ago. Practices with Wellspan Medical Group, a 2,342-clinician group, works from 15 locations and accepts Medicare assignment. Licensed in Maryland and Pennsylvania.

Years since qualifying
23
Trained at
New York Medical College
Licensed in
MD, PA
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4940 Eastern Ave
Baltimore, MD 21224-2735
Phone: (410) 550-0100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (14)

  • 12 St Paul Dr Ste 100, Chambersburg, PA 17201-1035 — (717) 217-6072
  • 112 N 7th St, Chambersburg, PA 17201-1720 — (717) 267-7164
  • 835 5th Ave, Chambersburg, PA 17201-4220 — (717) 217-4312
  • 169 Martin Aveunue, Ephrata, PA 17522-1734 — (717) 733-0311
  • 147 Gettys St, Gettysburg, PA 17325-2534 — (717) 337-4168
  • 1227 Baltimore St, Hanover, PA 17331-4406 — (717) 646-4204
  • 35 Erick Rd, Lancaster, PA 17601-3111 — (717) 690-0811
  • 252 S 4th St, Lebanon, PA 17042-6111 — (717) 270-7500
  • 1 Hospital Dr, Lewisburg, PA 17837-9350 — (570) 522-2000
  • 90 Medical Park Dr Ste 2000, Lewisburg, PA 17837-6343 — (570) 524-2722
  • 501 E Main St, Waynesboro, PA 17268-2353 — (717) 765-3425
  • 55 Monument Rd, York, PA 17403-5023 — (717) 812-6425
  • 25 Monument Rd Ste 270, York, PA 17403-5073 — (717) 741-8250
  • 1001 S George St, York, PA 17403-3676 — (717) 812-7687

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence MD479390 (PA)
Anesthesiology Physician Taxonomy 207L00000X · Licence D66135 (MD)

Record details

NPI number1386835767
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 9, 2007
Last updated in NPPESJanuary 14, 2026
Certification dateJanuary 14, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 2003 (23 years in practice)
Group practice Wellspan Medical Group — 2342 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients244
Services billed 252 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Wellspan Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2342 clinicians in the practice; 12 are shown here.

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