Gregory Lieser, M.D.
NPI 1083858518 · Urology Physician · Garland, TX
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Lieser, M.D. is a Urology Physician provider in Garland, TX (NPI 1083858518).
Provider details
- NPI number
- 1083858518
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- Q3726 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
5,707 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 916 | $93 |
| Automated Urinalysis Test81003 | 846 | $2 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 664 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 609 | $131 |
| Psa (prostate Specific Antigen) Measurement, Total84153 | 526 | $18 |
| Ultrasound Measurement of Bladder Capacity After Voiding51798 | 505 | $12 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 1,125 | 377 |
| Finasteride | 1,095 | 339 |
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er | 339 | 131 |
| Solifenacin Succinate | 223 | 84 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 151 | 130 |
| Testosterone Cypionate | 144 | 30 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$299 across 12 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 (2)
- 2821 E President George Bush HwySuite 300Richardson, TX 75082-4266Phone: (972) 961-9482
- 890 Rockwall Pkwy Ste 110Rockwall, TX 75032-6871Phone: (972) 961-9482Fax: (972) 961-9550
Registry dates
- Enumerated
- 2009-04-28
- Last updated
- 2018-06-07
Frequently asked questions
- What is Gregory Lieser's NPI number?
- Gregory Lieser's National Provider Identifier (NPI) is 1083858518, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Lieser's specialty?
- Gregory Lieser is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Lieser located?
- Gregory Lieser's practice location on file with NPPES is 6460 Naaman Forest Blvd, Garland, TX 75044-5601.
- What is Gregory Lieser's phone number?
- The practice phone number listed in the NPPES registry for Gregory Lieser is (972) 494-6764.
- Does Gregory Lieser accept Medicare?
- Gregory Lieser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Lieser's NPI active?
- Yes — Gregory Lieser's NPI (1083858518) is active in the NPPES registry as of the last update on 2018-06-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.