Siddhartha Kattamanchi, MD
NPI 1316388382 · Nephrology Physician · Marshfield, WI
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siddhartha Kattamanchi, MD is a Nephrology Physician provider in Marshfield, WI (NPI 1316388382).
Provider details
- NPI number
- 1316388382
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 63205 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
551 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Hemodialysis Procedure With Physician Evaluation90935 | 210 | $66 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 111 | $73 |
| Dialysis Procedure Including 1 Evaluation90945 | 105 | $80 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 38 | $120 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 30 | $68 |
| Critical Care, First 30-74 Minutes99291 | 27 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 49 | 17 |
| Losartan Potassium | 43 | 12 |
| Furosemide | 35 | 17 |
| Calcitriol | 32 | — |
| Ceftazidimebrand: Tazicef | 25 | — |
| Ceftazidime | 21 | — |
| Lisinopril | 21 | — |
| Prednisone |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-07-08
- Last updated
- 2021-03-30
- Certified
- 2021-03-30
Frequently asked questions
- What is Siddhartha Kattamanchi's NPI number?
- Siddhartha Kattamanchi's National Provider Identifier (NPI) is 1316388382, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siddhartha Kattamanchi's specialty?
- Siddhartha Kattamanchi is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Siddhartha Kattamanchi located?
- Siddhartha Kattamanchi's practice location on file with NPPES is 1000 N Oak Ave, Marshfield, WI 54449-5703.
- What is Siddhartha Kattamanchi's phone number?
- The practice phone number listed in the NPPES registry for Siddhartha Kattamanchi is (715) 387-5511.
- Does Siddhartha Kattamanchi accept Medicare?
- Siddhartha Kattamanchi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siddhartha Kattamanchi's NPI active?
- Yes — Siddhartha Kattamanchi's NPI (1316388382) is active in the NPPES registry as of the last update on 2021-03-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.