Siva Mandadi, MD
NPI 1538396858 · Internal Medicine Physician · Odessa, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siva Mandadi, MD is a Internal Medicine Physician provider in Odessa, TX (NPI 1538396858).
Provider details
- NPI number
- 1538396858
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- BP1-0035519 (TX)
Specialties & taxonomies
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
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,340 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 50 Minutes99233 | 671 | $116 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 305 | $111 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 264 | $75 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 84 | $170 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 16 | $123 |
Typical Medicare-allowed amounts for these services range $75–$170 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 61 | 61 |
| Pantoprazole Sodium | 45 | 34 |
| Apixabanbrand: Eliquis | 40 | 25 |
| Cefuroxime Axetilbrand: Cefuroxime | 39 | 39 |
| Furosemide | 38 | 30 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 33 | 31 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$192 across 6 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 (3)
- 811 S Washington AveMarshall, TX 75670-5336Phone: (903) 315-1488
- 800 E Dawson StTyler, TX 75701-2036Phone: (903) 606-7264
- 8389 S Broadway AveTyler, TX 75703-5408Phone: (903) 606-4129
Registry dates
- Enumerated
- 2009-06-12
- Last updated
- 2025-09-02
- Certified
- 2025-09-02
Frequently asked questions
- What is Siva Mandadi's NPI number?
- Siva Mandadi's National Provider Identifier (NPI) is 1538396858, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siva Mandadi's specialty?
- Siva Mandadi is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Siva Mandadi located?
- Siva Mandadi's practice location on file with NPPES is 701 W 5th St, Odessa, TX 79763-4206.
- What is Siva Mandadi's phone number?
- The practice phone number listed in the NPPES registry for Siva Mandadi is (432) 335-1700.
- Does Siva Mandadi accept Medicare?
- Siva Mandadi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siva Mandadi's NPI active?
- Yes — Siva Mandadi's NPI (1538396858) is active in the NPPES registry as of the last update on 2025-09-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.