Doctor profile · Federal record

Dr. MARISSA KARPOFF, M.D.

Rheumatology Physician (CMS: RHEUMATOLOGY) · Rheumatology Physician · Internal Medicine Physician · WYNNEWOOD, PA

  • NPI 1659613347
  • Accepts Medicare
  • MIPS 78.5 / 100 · 2023
  • 13 yrs in practice
  • Licensed in 3 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 4 locations .

NPPES Updated May 11, 2026
Primary practice
100 E LANCASTER AVE STE 137
WYNNEWOOD, PA 190963453
(610) 896-8400
Additional location
825 Old Lancaster Rd Ste 320
Bryn Mawr, PA 190103235
(610) 527-3800
Additional location
1275 York Ave
New York, NY 100656007
(212) 639-2734
Show 1 more location
Additional location
1935 Route 70 E Fl 2
Cherry Hill, NJ 08003
(856) 428-7700
Mailing address
1 FEDERAL ST # 200
CAMDEN, NJ 081031088

Credentials & registration

NPPES · NUCC
NPI registered
March 2013 — 13 yrs on file
Profile last updated
March 25, 2026
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
207RR0500X — NUCC code
State licenses (3)
Pennsylvania #MD464904 · New Jersey #25MA10574700 · New York #277829

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659613347. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
419
Distinct HCPCS
7
Medicare allowed
$48,348
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 190 117 $139
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg 90 19 $1
99204 New patient office or other outpatient visit, 45-59 minutes 62 62 $180
99215 Established patient office or other outpatient visit, 40-54 minutes 30 27 $190
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 18 18 $139
99213 Established patient office or other outpatient visit, 20-29 minutes 16 16 $98
20610 Aspiration and/or injection of fluid from large joint 13 12 $76

In context: peer comparison

Among 3 peers in this city , average services per provider: 4,092. This provider delivers 0.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,495
Patients
409
Total drug cost
$1,229,774
Drug Type Claims Patients Total cost
Prednisone Generic 348 113 $3,009
Hydroxychloroquine Sulfate Generic 233 52 $15,232
Methotrexate (Methotrexate Sodium) Brand 137 35 $4,104
Diclofenac Sodium Generic 124 48 $9,602
Gabapentin Generic 105 29 $2,543
Enbrel Sureclick (Etanercept) Brand 79 12 $662,645
Alendronate Sodium Generic 69 23 $1,151
Tramadol Hcl Generic 68 20 $1,022
Leflunomide Generic 64 17 $8,327
Oxycodone Hcl Generic 64 13 $2,506

Hospital affiliations

CMS Hospital Compare