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 .
- 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 - Additional location
-
1935 Route 70 E Fl 2
Cherry Hill, NJ 08003
(856) 428-7700 - Mailing address
-
1 Federal St # 200
Camden, NJ 081031088
Show 1 more location
Credentials & registration
- 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
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
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 Wynnewood Rheumatology Physician, average services per provider: 4,092. This provider delivers 0.1× the peer median.Medicare Part D · 2023
Top prescriptions
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
Frequently asked questions
What is Dr. Marissa Karpoff's medical specialty?
Dr. Marissa Karpoff practices Rheumatology Physician in Wynnewood, PA.
Where does Dr. Marissa Karpoff practice?
Dr. Marissa Karpoff practices at 100 E Lancaster Ave Ste 137, Wynnewood, PA 190963453. Office phone: 6108968400.
What is Dr. Marissa Karpoff's NPI?
Dr. Marissa Karpoff's National Provider Identifier (NPI) is 1659613347, issued by NPPES.
Does Dr. Marissa Karpoff accept Medicare assignment?
Yes. Dr. Marissa Karpoff accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marissa Karpoff commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.