Siddharth Mathur, MD
NPI 1578728986 · Gastroenterology Physician · Crystal River, FL
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siddharth Mathur, MD is a Gastroenterology Physician provider in Crystal River, FL (NPI 1578728986).
Provider details
- NPI number
- 1578728986
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 003163 (NY)
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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,651 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 891 | $71 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 513 | $91 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 300 | $81 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 246 | $91 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 241 | $110 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 543 | 234 |
| Sod Picosulf/Mag Ox/Citric Acbrand: Clenpiq | 387 | 378 |
| Pantoprazole Sodium | 112 | 51 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 110 | 107 |
| Famotidine | 106 | 39 |
| Sucralfate | 65 | 32 |
| Linaclotidebrand: Linzess | 51 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$76,704 across 185 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
Registry dates
- Enumerated
- 2008-07-24
- Last updated
- 2014-02-18
Frequently asked questions
- What is Siddharth Mathur's NPI number?
- Siddharth Mathur's National Provider Identifier (NPI) is 1578728986, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siddharth Mathur's specialty?
- Siddharth Mathur is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Siddharth Mathur located?
- Siddharth Mathur's practice location on file with NPPES is 6410 W Gulf to Lake Hwy, Crystal River, FL 34429-7622.
- What is Siddharth Mathur's phone number?
- The practice phone number listed in the NPPES registry for Siddharth Mathur is (352) 563-2450.
- Does Siddharth Mathur accept Medicare?
- Siddharth Mathur is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siddharth Mathur's NPI active?
- Yes — Siddharth Mathur's NPI (1578728986) is active in the NPPES registry as of the last update on 2014-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.