Freddy Calderon, M.D.
NPI 1932316338 · Nephrology Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Freddy Calderon, M.D. is a Nephrology Physician provider in Pasadena, CA (NPI 1932316338).
Provider details
- NPI number
- 1932316338
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A96401 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Calcitriol | 59 | 25 |
| Furosemide | 45 | 18 |
| Amlodipine Besylate | 44 | 16 |
| Cephalexin | 44 | 31 |
| Fluconazole | 43 | 15 |
| Losartan Potassium | 39 | 15 |
| Potassium Chloride | 32 | 16 |
| Sevelamer Carbonate | 31 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-16
- Last updated
- 2021-11-29
Frequently asked questions
- What is Freddy Calderon's NPI number?
- Freddy Calderon's National Provider Identifier (NPI) is 1932316338, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Freddy Calderon's specialty?
- Freddy Calderon is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Freddy Calderon located?
- Freddy Calderon's practice location on file with NPPES is 393 E Walnut St, Pasadena, CA 91188-0001.
- What is Freddy Calderon's phone number?
- The practice phone number listed in the NPPES registry for Freddy Calderon is (626) 405-7914.
- Does Freddy Calderon accept Medicare?
- Freddy Calderon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Freddy Calderon's NPI active?
- Yes — Freddy Calderon's NPI (1932316338) is active in the NPPES registry as of the last update on 2021-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.