Chidambaram Valliappan, M.D.
NPI 1265815021 · Nephrology Physician · Winter Park, FL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chidambaram Valliappan, M.D. is a Nephrology Physician provider in Winter Park, FL (NPI 1265815021).
Provider details
- NPI number
- 1265815021
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 4301107774 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
11 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
1,501 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 355 | $77 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 325 | $124 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 272 | $116 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 240 | $16 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 113 | $169 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dapagliflozin Propanediolbrand: Farxiga | 190 | 43 |
| Empagliflozinbrand: Jardiance | 141 | 31 |
| Losartan Potassium | 90 | 40 |
| Finerenonebrand: Kerendia | 80 | 18 |
| Tamsulosin Hcl | 65 | 30 |
| Atorvastatin Calcium | 60 | 27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$329 across 16 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)
- 515 Wekiva Commons CirApopka, FL 32712-3645Phone: (407) 464-9516Fax: (407) 464-9519
Registry dates
- Enumerated
- 2015-06-29
- Last updated
- 2023-06-14
- Certified
- 2023-06-14
Frequently asked questions
- What is Chidambaram Valliappan's NPI number?
- Chidambaram Valliappan's National Provider Identifier (NPI) is 1265815021, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chidambaram Valliappan's specialty?
- Chidambaram Valliappan is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Chidambaram Valliappan located?
- Chidambaram Valliappan's practice location on file with NPPES is 3727 N Goldenrod Rd Ste 105, Winter Park, FL 32792-8611.
- What is Chidambaram Valliappan's phone number?
- The practice phone number listed in the NPPES registry for Chidambaram Valliappan is (407) 657-0296.
- Does Chidambaram Valliappan accept Medicare?
- Chidambaram Valliappan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chidambaram Valliappan's NPI active?
- Yes — Chidambaram Valliappan's NPI (1265815021) is active in the NPPES registry as of the last update on 2023-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.