Doctor profile · Federal record
Dr. Gretchen Mathewson, FNP
Family Nurse Practitioner (CMS: Nurse Practitioner) · New York, NY
- NPI 1639494685
- Accepts Medicare
- 17 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
5 East 98Th Street, Box 1138
New York, NY 100296501
(212) 241-6854
fax (212) 241-5333 - Mailing address
-
5 E 98Th St, Box 1138
New York, NY 100296501
Credentials & registration
- NPI registered
- April 2010 — 16 yrs on file
- Profile last updated
- October 25, 2010
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State license (1)
- New York #F335831
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1639494685. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
16
Distinct HCPCS
1
Medicare allowed
$2,478
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 16 | 11 | $155 |
In context: peer comparison
Among 221 peers in this city , average services per provider: 100. This provider delivers 0.2× the peer median.Open Payments
Industry payments received
All-time total
$203
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | 1 | $118.53 | |
| Genentech USA, Inc. | 1 | $84.00 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,005
Patients
170
Total drug cost
$3,519,977
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Baclofen | Generic | 125 | 35 | $3,845 |
| Gabapentin | Generic | 111 | 32 | $2,075 |
| Copaxone (Glatiramer Acetate) | Brand | 109 | 14 | $752,689 |
| Dimethyl Fumarate | Generic | 97 | 17 | $141,544 |
| Dalfampridine Er (Dalfampridine) | Brand | 94 | 25 | $83,722 |
| Glatiramer Acetate | Generic | 68 | 11 | $296,298 |
| Tecfidera (Dimethyl Fumarate) | Brand | 62 | 13 | $615,884 |
| Avonex Pen (Interferon Beta-1a) | Brand | 54 | 0 | $444,497 |
| Duloxetine Hcl | Generic | 50 | 0 | $923 |
| Modafinil | Generic | 48 | 12 | $10,338 |
Hospital affiliations
Frequently asked questions
What is Dr. Gretchen Mathewson's medical specialty?
Dr. Gretchen Mathewson practices Family Nurse Practitioner in New York, NY.
Where does Dr. Gretchen Mathewson practice?
Dr. Gretchen Mathewson practices at 5 East 98Th Street, New York, NY 100296501. Office phone: 2122416854.
What is Dr. Gretchen Mathewson's NPI?
Dr. Gretchen Mathewson's National Provider Identifier (NPI) is 1639494685, issued by NPPES.
Does Dr. Gretchen Mathewson accept Medicare assignment?
Yes. Dr. Gretchen Mathewson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gretchen Mathewson commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.