Timothy Duffin, MD
NPI 1144291527 · Urology Physician · Clarksville, TN
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Duffin, MD is a Urology Physician provider in Clarksville, TN (NPI 1144291527).
Provider details
- NPI number
- 1144291527
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 26846 (TN)
Specialties & taxonomies
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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,338 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 | 956 | $116 |
| Urinalysis, Manual Test81002 | 949 | $3 |
| Ultrasound Measurement of Bladder Capacity After Voiding51798 | 731 | $10 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 205 | $164 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 167 | $82 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 362 | 104 |
| Finasteride | 172 | 50 |
| Cephalexin | 77 | 50 |
| Levofloxacin | 67 | 52 |
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er | 59 | 21 |
| Alfuzosin Hclbrand: Alfuzosin Hcl Er | 59 | 18 |
| Mirabegronbrand: Myrbetriq | 52 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$177 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
Registry dates
- Enumerated
- 2006-02-01
- Last updated
- 2020-12-16
- Certified
- 2020-12-09
Frequently asked questions
- What is Timothy Duffin's NPI number?
- Timothy Duffin's National Provider Identifier (NPI) is 1144291527, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Duffin's specialty?
- Timothy Duffin is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Duffin located?
- Timothy Duffin's practice location on file with NPPES is 800 Weatherly Dr Ste 100l, Clarksville, TN 37043-8958.
- What is Timothy Duffin's phone number?
- The practice phone number listed in the NPPES registry for Timothy Duffin is (931) 553-2800.
- Does Timothy Duffin accept Medicare?
- Timothy Duffin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Duffin's NPI active?
- Yes — Timothy Duffin's NPI (1144291527) is active in the NPPES registry as of the last update on 2020-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.