Julia Geynisman-Tan, MD
NPI 1831465806 · Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Julia Geynisman-Tan, MD is a Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician provider in Chicago, IL (NPI 1831465806).
Provider details
- NPI number
- 1831465806
- Entity type
- Individual
- Primary specialty
- Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 036-139425 (IL)
Specialties & taxonomies
- Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) PhysicianPrimary207VF0040XLicense 036139425 (IL)
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,586 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 374 | $134 |
| Automated Urinalysis Test81003 | 257 | $2 |
| Insertion of Temporary Bladder Tube51701 | 252 | $48 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 195 | $178 |
| Exam With Injections of Chemical for Destruction of Bladder Using an Endoscope52287 | 125 | $409 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 79 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 107 | 65 |
| Mirabegronbrand: Myrbetriq | 95 | 26 |
| Vibegronbrand: Gemtesa | 59 | 27 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 31 | 30 |
| Clobetasol Propionate | 14 | 12 |
| Trospium Chloridebrand: Trospium Chloride Er | 13 | — |
| Solifenacin Succinate | 11 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$215 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 25 N Winfield Rd Ste 407Winfield, IL 60190-1222Phone: (630) 938-3500
Registry dates
- Enumerated
- 2012-03-23
- Last updated
- 2021-04-23
- Certified
- 2021-04-23
Frequently asked questions
- What is Julia Geynisman-Tan's NPI number?
- Julia Geynisman-Tan's National Provider Identifier (NPI) is 1831465806, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julia Geynisman-Tan's specialty?
- Julia Geynisman-Tan is listed in the NPPES registry with a primary specialty of Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician (Allopathic & Osteopathic Physicians).
- Where is Julia Geynisman-Tan located?
- Julia Geynisman-Tan's practice location on file with NPPES is 676 N Saint Clair St Ste 950, Chicago, IL 60611-2955.
- What is Julia Geynisman-Tan's phone number?
- The practice phone number listed in the NPPES registry for Julia Geynisman-Tan is (312) 694-7337.
- Does Julia Geynisman-Tan accept Medicare?
- Julia Geynisman-Tan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Julia Geynisman-Tan's NPI active?
- Yes — Julia Geynisman-Tan's NPI (1831465806) is active in the NPPES registry as of the last update on 2021-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.