Michael Chiorean, MD
NPI 1578527099 · Gastroenterology Physician · Issaquah, WA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Chiorean, MD is a Gastroenterology Physician provider in Issaquah, WA (NPI 1578527099).
Provider details
- NPI number
- 1578527099
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD60284903 (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
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
257 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) |
|---|---|---|
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 70 | $262 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 47 | $142 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 39 | $126 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 39 | $18 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 24 | $199 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 72 | 70 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 71 | 69 |
| Mesalamine | 47 | 11 |
| Omeprazole | 34 | 17 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 29 | 29 |
| Ustekinumabbrand: Stelara | 28 | — |
| Sodium Chloride/Nahco3/Kcl/Peg |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$313,355 across 287 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
- 2006-04-13
- Last updated
- 2021-05-04
- Certified
- 2021-05-04
Frequently asked questions
- What is Michael Chiorean's NPI number?
- Michael Chiorean's National Provider Identifier (NPI) is 1578527099, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Chiorean's specialty?
- Michael Chiorean is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Chiorean located?
- Michael Chiorean's practice location on file with NPPES is 751 Ne Blakely Dr Ste 3020, Issaquah, WA 98029-6201.
- What is Michael Chiorean's phone number?
- The practice phone number listed in the NPPES registry for Michael Chiorean is (425) 313-5345.
- Does Michael Chiorean accept Medicare?
- Michael Chiorean is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Chiorean's NPI active?
- Yes — Michael Chiorean's NPI (1578527099) is active in the NPPES registry as of the last update on 2021-05-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.