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Edit this profileAt a glance
- 719 Green Valley Rd, #201, Greensboro, NC 27408
About Dr. Callahan
Sidney Callahan, D.O. is a healthcare provider in Greensboro, NC specializing in obstetrics & gynecology. Medicare claims data shows Sidney provided 46 services to 46 patients. The services billed most often include screening mammography, screening 3d breast mammography, and cervical or vaginal cancer screening; pelvic and clinical breast examination. This provider record is associated with NPI 1083875223.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (336) 378-1110
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
719 GREEN VALLEY RD #201
Greensboro, NC 27408
Conditions Commonly Evaluated or Treated
Within Obstetrics and Gynecology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Contraception
Fertility
High-risk or subspecialty
Infections
Pelvic pain and benign gynecology
- Uterine fibroids
- Chronic pelvic pain
- Ovarian cysts
- Painful intercourse
- Pelvic organ prolapse
- Urinary incontinence in women
Most searched conditions
Infections and vulvovaginal conditions
Menstrual and hormonal
- Absent periods
- Genitourinary syndrome of menopause
- Painful periods
- Perimenopause
- Premenstrual syndrome
Pregnancy
- Ectopic pregnancy
- Gestational diabetes
- Hyperemesis gravidarum
- Miscarriage
- Placenta previa
- Postpartum depression
- Preeclampsia
- Preterm labor
Cancer and precancer
- Abnormal cervical cells and cervical dysplasia
- Cervical cancer
- Endometrial cancer
- Endometrial hyperplasia
- Ovarian cancer
Pregnancy Complications
Vaginal & Vulvar Health
Procedures & services
Diagnostic Tests
Hormone & Menopause
Laparoscopic and adnexal surgery
Pelvic floor
Pregnancy and delivery
Preventive and diagnostic
- Pelvic examination
- Transvaginal ultrasound
- Well-woman examination
- Colposcopy
- Endometrial biopsy
- Human papillomavirus testing
Subspecialty procedures
Surgeries
Most searched procedures
Contraception and office treatment
Birth Control
Contraception
Diagnostic Procedures
- Amniocentesis
Fertility
- Egg freezing
- Intrauterine Insemination (IUI)
Postpartum Care
Pregnancy & Prenatal
Preventive Care
Preventive Screening
Routine Exams
Uterine and cervical procedures
Procedures Most Often Billed to Medicare
46 services · 46 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Screening mammography | Imaging | 77067 |
16 | Less often than most peers in OB-GYN |
| Screening 3d breast mammography | Imaging | 77063 |
16 | Less often than most peers in OB-GYN |
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | Billing code | G0101 |
14 | Less often than most peers in OB-GYN |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other OB-GYNs at this location 8
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other OB-GYNs in Greensboro 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2008 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Screening mammography 8
Providers in NC who bill this service to Medicare most often.
Common questions
What is Sidney Callahan's specialty?
Sidney Callahan is an OB-GYN in Greensboro, NC. That is the designation recorded for this NPI in the federal registry, where it is listed as “Obstetrics & Gynecology”.
NPI registry
Where can I find Sidney Callahan?
Sidney Callahan is listed at 719 Green Valley Rd #201, Greensboro, NC 27408. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Sidney Callahan?
The number on file is (336) 378-1110. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Sidney Callahan?
Sidney Callahan's National Provider Identifier is 1083875223. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Sidney Callahan's education?
Sidney Callahan attended Other, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Sidney Callahan have?
Sidney Callahan has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
What is Sidney Callahan known for?
According to Medicare billing data, Sidney Callahan performs imaging including screening mammography and screening 3d breast mammography. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Sidney Callahan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Sidney Callahan. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.