Doctor profile · Federal record
Dr. Alexandra Kiefer, MD
Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · Stony Brook, NY
- NPI 1689107641
- Accepts Medicare
- MIPS 91.4 / 100 · 2023
- 8 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
101 Nicolls R OBGYN Dept Hsc Level 9
Stony Brook, NY 117940001
(631) 444-4686
Credentials & registration
- NPI registered
- April 2017 — 9 yrs on file
- Profile last updated
- May 8, 2022
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 207V00000X — NUCC code
- State license (1)
- New York #315865
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1689107641. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
34
Distinct HCPCS
2
Medicare allowed
$2,538
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
G0101 |
Cervical or vaginal cancer screening; pelvic and clinical breast examination | 18 | 18 | $47 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 16 | 12 | $105 |
In context: peer comparison
Among 6 peers in Stony Brook Obstetrics & Gynecology Physician, average services per provider: 27. This provider delivers 1.3× the peer median.Frequently asked questions
What is Dr. Alexandra Kiefer's medical specialty?
Dr. Alexandra Kiefer practices Obstetrics & Gynecology Physician in Stony Brook, NY.
Where does Dr. Alexandra Kiefer practice?
Dr. Alexandra Kiefer practices at 101 Nicolls R OBGYN Dept Hsc Level 9, Stony Brook, NY 117940001. Office phone: 6314444686.
What is Dr. Alexandra Kiefer's NPI?
Dr. Alexandra Kiefer's National Provider Identifier (NPI) is 1689107641, issued by NPPES.
Does Dr. Alexandra Kiefer accept Medicare assignment?
Yes. Dr. Alexandra Kiefer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alexandra Kiefer commonly perform?
Top Medicare-reported procedures in 2023: Cervical or vaginal cancer screening; pelvic and clinical breast examination (HCPCS G0101); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.