Siva Maran, M.D.
NPI 1619965043 · Gastroenterology Physician · Morristown, TN
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siva Maran, M.D. is a Gastroenterology Physician provider in Morristown, TN (NPI 1619965043).
Provider details
- NPI number
- 1619965043
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD0000023962 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
160 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) |
|---|---|---|
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 82 | $115 |
| Dilation of Esophagus43450 | 24 | $36 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 22 | $175 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 17 | $52 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 15 | $84 |
Typical Medicare-allowed amounts for these services range $36–$175 (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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sucralfate | 221 | 75 |
| Omeprazole | 220 | 94 |
| Pantoprazole Sodium | 143 | 59 |
| Dicyclomine Hcl | 80 | 25 |
| Famotidine | 64 | 18 |
| Ondansetron Hcl | 42 | 42 |
| Mesalamine | 27 | — |
| Propranolol Hcl | 27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$383 across 20 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
- 2005-10-10
- Last updated
- 2020-09-04
- Certified
- 2020-09-04
Frequently asked questions
- What is Siva Maran's NPI number?
- Siva Maran's National Provider Identifier (NPI) is 1619965043, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siva Maran's specialty?
- Siva Maran is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Siva Maran located?
- Siva Maran's practice location on file with NPPES is 705 N High St, Morristown, TN 37814-3876.
- What is Siva Maran's phone number?
- The practice phone number listed in the NPPES registry for Siva Maran is (423) 415-3310.
- Does Siva Maran accept Medicare?
- Siva Maran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siva Maran's NPI active?
- Yes — Siva Maran's NPI (1619965043) is active in the NPPES registry as of the last update on 2020-09-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.