Doctor profile · Federal record

Dr. Wendy McCallum

Internal Medicine Physician (CMS: Nephrology) · Boston, MA

  • NPI 1831501402
  • Accepts Medicare
  • 12 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
800 Washington St
Boston, MA 021111552
(617) 636-5000

Credentials & registration

NPPES · NUCC
NPI registered
May 2014 — 12 yrs on file
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Massachusetts #259542

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1831501402. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
381
Distinct HCPCS
6
Medicare allowed
$37,913
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 157 74 $85
90945 Dialysis procedure including 1 evaluation 64 21 $92
99214 Established patient office or other outpatient visit, 30-39 minutes 60 37 $105
90937 Hemodialysis procedure requiring repeated evaluation 51 24 $109
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 30 29 $139
99204 New patient office or other outpatient visit, 45-59 minutes 19 19 $143

In context: peer comparison

Among 547 peers in Boston Internal Medicine Physician, average services per provider: 81. This provider delivers 4.7× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Wendy McCallum's medical specialty?
Dr. Wendy McCallum practices Internal Medicine Physician in Boston, MA.
Where does Dr. Wendy McCallum practice?
Dr. Wendy McCallum practices at 800 Washington St, Boston, MA 021111552. Office phone: 6176365000.
What is Dr. Wendy McCallum's NPI?
Dr. Wendy McCallum's National Provider Identifier (NPI) is 1831501402, issued by NPPES.
Does Dr. Wendy McCallum accept Medicare assignment?
Yes. Dr. Wendy McCallum accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Wendy McCallum commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Dialysis procedure including 1 evaluation (HCPCS 90945); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.