Doctor profile · Federal record
Dr. Zoe Gillis, MD
Obstetrics & Gynecology Physician · Ayer, MA
- NPI 1437174141
- 20 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
198 Groton Road
Ayer, MA 01432
(978) 784-9831
fax (978) 772-0113 - Mailing address
-
200 Groton Road, Nashoba Valley Healthcare Group
Ayer, MA 01432
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- March 4, 2009
- Specialty taxonomy
- 207V00000X — NUCC code
- State license (1)
- Massachusetts #229772
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1437174141. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
234
Distinct HCPCS
5
Medicare allowed
$21,240
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 124 | 57 | $98 | |
Q0091 |
Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | 39 | 39 | $48 | |
G0101 |
Cervical or vaginal cancer screening; pelvic and clinical breast examination | 30 | 30 | $42 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 22 | 22 | $159 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 19 | 14 | $127 |
In context: peer comparison
Among 1 peers in Ayer Obstetrics & Gynecology Physician, average services per provider: 46. This provider delivers 5.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
131
Patients
28
Total drug cost
$13,042
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Yuvafem (Estradiol) | Brand | 36 | 14 | $5,905 |
| Estradiol | Generic | 26 | 14 | $5,476 |
| Valacyclovir (Valacyclovir Hcl) | Brand | 18 | 0 | $206 |
| Junel (Norethindrone Ac-Eth Estradiol) | Brand | 16 | 0 | $299 |
| Vienva (Levonorgestrel/Ethin.Estradiol) | Brand | 13 | 0 | $221 |
| Clindamycin Phosphate | Generic | 11 | 0 | $234 |
| Clobetasol Propionate | Generic | 11 | 0 | $700 |
Frequently asked questions
What is Dr. Zoe Gillis's medical specialty?
Dr. Zoe Gillis practices Obstetrics & Gynecology Physician in Ayer, MA.
Where does Dr. Zoe Gillis practice?
Dr. Zoe Gillis practices at 198 Groton Road, Ayer, MA 01432. Office phone: 9787849831.
What is Dr. Zoe Gillis's NPI?
Dr. Zoe Gillis's National Provider Identifier (NPI) is 1437174141, issued by NPPES.
What procedures does Dr. Zoe Gillis commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (HCPCS Q0091); Cervical or vaginal cancer screening; pelvic and clinical breast examination (HCPCS G0101). Source: CMS Medicare Physician & Other Practitioners file.