Doctor profile · Federal record
Dr. Karolyn Chang, PA
Physician Assistant · Carmel, NY
- NPI 1972862845
- Accepts Medicare
- MIPS 79.1 / 100 · 2023
- 15 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
670 Stoneleigh Avenue
Carmel, NY 10512
(845) 278-5687 - Mailing address
-
615 Broadway, Apt #14
Amityville, NY 11701
Credentials & registration
- NPI registered
- May 2012 — 14 yrs on file
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- New York #23015501
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1972862845. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
345
Distinct HCPCS
4
Medicare allowed
$30,434
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 270 | 215 | $81 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 43 | 43 | $100 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 19 | 17 | $116 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 13 | 13 | $151 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 44. This provider delivers 7.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
24
Patients
0
Total drug cost
$604
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Zolpidem Tartrate | Generic | 13 | 0 | $130 |
| Methylphenidate Er (Methylphenidate Hcl) | Brand | 11 | 0 | $473 |
Hospital affiliations
Frequently asked questions
What is Dr. Karolyn Chang's medical specialty?
Dr. Karolyn Chang practices Physician Assistant in Carmel, NY.
Where does Dr. Karolyn Chang practice?
Dr. Karolyn Chang practices at 670 Stoneleigh Avenue, Carmel, NY 10512. Office phone: 8452785687.
What is Dr. Karolyn Chang's NPI?
Dr. Karolyn Chang's National Provider Identifier (NPI) is 1972862845, issued by NPPES.
Does Dr. Karolyn Chang accept Medicare assignment?
Yes. Dr. Karolyn Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karolyn Chang commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99203); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.