Doctor profile · Federal record
Dr. Karen Nishida, MD
Gynecologic Oncology Physician (CMS: Gynecological Oncology) · Stamford, CT
- NPI 1962509653
- Accepts Medicare
- MIPS 92.8 / 100 · 2023
- 27 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1290 Summer St Ste 5200
Stamford, CT 069055339
(203) 998-0848
fax (203) 323-0566
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- January 15, 2015
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207VX0201X — NUCC code
- State license (1)
- Connecticut #052404
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1962509653. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
219
Distinct HCPCS
5
Medicare allowed
$32,972
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 110 | 70 | $133 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 31 | 28 | $95 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 29 | 27 | $188 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 27 | 27 | $231 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 22 | 22 | $169 |
In context: peer comparison
Among 1 peers in Stamford Gynecologic Oncology Physician, average services per provider: 43. This provider delivers 5.1× the peer median.Open Payments
Industry payments received
All-time total
$266
Transactions
7
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Myriad Genetic Laboratories, INC. | 3 | $148.67 | |
| Merck Sharp & Dohme LLC | 3 | $93.70 | |
| Tempus Ai, INC | 1 | $23.94 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
29
Patients
0
Total drug cost
$1,884
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Estradiol | Generic | 15 | 0 | $1,837 |
| Triamcinolone Acetonide | Generic | 14 | 0 | $47 |
Hospital affiliations
Frequently asked questions
What is Dr. Karen Nishida's medical specialty?
Dr. Karen Nishida practices Gynecologic Oncology Physician in Stamford, CT.
Where does Dr. Karen Nishida practice?
Dr. Karen Nishida practices at 1290 Summer St Ste 5200, Stamford, CT 069055339. Office phone: 2039980848.
What is Dr. Karen Nishida's NPI?
Dr. Karen Nishida's National Provider Identifier (NPI) is 1962509653, issued by NPPES.
Does Dr. Karen Nishida accept Medicare assignment?
Yes. Dr. Karen Nishida accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karen Nishida commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.