Than Oo, MD
NPI 1184673709 · Nephrology Physician · Kalamazoo, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Than Oo, MD is a Nephrology Physician provider in Kalamazoo, MI (NPI 1184673709).
Provider details
- NPI number
- 1184673709
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301067357 (MI)
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
20 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
638 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) |
|---|---|---|
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 171 | $336 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 170 | $94 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 110 | $75 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 66 | $122 |
| Hemodialysis Procedure With Physician Evaluation90935 | 45 | $65 |
| 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 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 88 | 28 |
| Amlodipine Besylate | 73 | 22 |
| Sevelamer Carbonate | 71 | 24 |
| Furosemide | 63 | 18 |
| Potassium Chloride | 54 | 13 |
| Dapagliflozin Propanediolbrand: Farxiga | 44 | — |
| Calcitriol | 42 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$50 across 2 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)
- 233 Roosevelt Ave E Ste 103Battle Creek, MI 49037-2810Phone: (269) 349-6759
- 3271 W Carleton RdHillsdale, MI 49242-9458Phone: (269) 349-6759
Registry dates
- Enumerated
- 2006-05-10
- Last updated
- 2023-11-09
- Certified
- 2023-11-09
Frequently asked questions
- What is Than Oo's NPI number?
- Than Oo's National Provider Identifier (NPI) is 1184673709, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Than Oo's specialty?
- Than Oo is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Than Oo located?
- Than Oo's practice location on file with NPPES is 521 E Michigan Ave, Kalamazoo, MI 49007-3889.
- What is Than Oo's phone number?
- The practice phone number listed in the NPPES registry for Than Oo is (269) 349-6759.
- Does Than Oo accept Medicare?
- Than Oo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Than Oo's NPI active?
- Yes — Than Oo's NPI (1184673709) is active in the NPPES registry as of the last update on 2023-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.