Narendra Siddaiah, MD
NPI 1942225453 · Gastroenterology Physician · Silverdale, WA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Narendra Siddaiah, MD is a Gastroenterology Physician provider in Silverdale, WA (NPI 1942225453).
Provider details
- NPI number
- 1942225453
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00041998 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,585 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 191 | $95 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 145 | $94 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 145 | $135 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 140 | $256 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 127 | $66 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 210 | 66 |
| Omeprazole | 168 | 61 |
| Famotidine | 69 | 26 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 54 | 52 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 51 | 48 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 49 | 49 |
| Lipase/Protease/Amylase |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,151 across 36 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 (1)
- 2771 Hemlock St202Bremerton, WA 98310-2689Phone: (360) 479-1954Fax: (360) 479-0318
Registry dates
- Enumerated
- 2006-07-13
- Last updated
- 2022-07-21
- Certified
- 2021-10-05
Frequently asked questions
- What is Narendra Siddaiah's NPI number?
- Narendra Siddaiah's National Provider Identifier (NPI) is 1942225453, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Narendra Siddaiah's specialty?
- Narendra Siddaiah is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Narendra Siddaiah located?
- Narendra Siddaiah's practice location on file with NPPES is 3261 Nw Mount Vintage Way Ste 221, Silverdale, WA 98383-6039.
- What is Narendra Siddaiah's phone number?
- The practice phone number listed in the NPPES registry for Narendra Siddaiah is (360) 479-1952.
- Does Narendra Siddaiah accept Medicare?
- Narendra Siddaiah is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Narendra Siddaiah's NPI active?
- Yes — Narendra Siddaiah's NPI (1942225453) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.