Joanattan Calderon, DO
NPI 1881198067 · Internal Medicine Physician · Round Rock, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanattan Calderon, DO is a Internal Medicine Physician provider in Round Rock, TX (NPI 1881198067).
Provider details
- NPI number
- 1881198067
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- T0184 (TX)
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
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
277 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) |
|---|---|---|
| Initial Hospital Care With Same-Day Admission and Discharge With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 70 Minutes99235 | 183 | $151 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 69 | $161 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 25 | $111 |
Typical Medicare-allowed amounts for these services range $111–$161 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 425 University Blvd Ste 345Round Rock, TX 78665-1058Phone: (512) 509-0200
Registry dates
- Enumerated
- 2018-03-21
- Last updated
- 2024-03-12
- Certified
- 2024-03-12
Frequently asked questions
- What is Joanattan Calderon's NPI number?
- Joanattan Calderon's National Provider Identifier (NPI) is 1881198067, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanattan Calderon's specialty?
- Joanattan Calderon is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joanattan Calderon located?
- Joanattan Calderon's practice location on file with NPPES is 300 University Blvd, Round Rock, TX 78665-1032.
- What is Joanattan Calderon's phone number?
- The practice phone number listed in the NPPES registry for Joanattan Calderon is (512) 509-0100.
- Does Joanattan Calderon accept Medicare?
- Joanattan Calderon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanattan Calderon's NPI active?
- Yes — Joanattan Calderon's NPI (1881198067) is active in the NPPES registry as of the last update on 2024-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.