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

Dr. Errol S Mortimer, MD

Individual provider Orthopaedic Surgery Physician · NPI 1851375984

Dr. Errol S Mortimer, MD is an Orthopedic Surgery in Worcester, Massachusetts. Qualified in 1986, 40 years ago. Practices with Umass Memorial Medical Group Inc, a 2,467-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
40
Licensed in
MA
In the registry since
2005
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

55 Lake Ave N Dept OF Orthopedic Surgery
Worcester, MA 01655-0002
Phone: (508) 856-4065
Fax: (508) 856-5170
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 81083 (MA)

Record details

NPI number1851375984
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 1, 2005
Last updated in NPPESOctober 28, 2020
Certification dateOctober 28, 2020
Mailing addressPo Box 415348, Boston, MA 02241-0001

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolOTHER
Graduated 1986 (40 years in practice)
Group practice Umass Memorial Medical Group Inc — 2467 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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