Michael Thiim, M.D.
NPI 1902801509 · Gastroenterology Physician · Haverhill, MA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Thiim, M.D. is a Gastroenterology Physician provider in Haverhill, MA (NPI 1902801509).
Provider details
- NPI number
- 1902801509
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 79926 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
21 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
849 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Moderate Sedation Services Provided By the Same Physician Or Other Qualified Health Care Professional Performing a Gastrointestinal Endoscopic Service That Sedation Supports, Requiring the Presence of an Independent Trained Observer to Assist in the MonitoG0500 | 162 | $6 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 134 | $102 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 90 | $253 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 64 | $152 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 56 | $51 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 227 | 219 |
| Ursodiol | 149 | 45 |
| Mycophenolate Mofetil | 68 | 11 |
| Carvedilol | 60 | 19 |
| Prednisone | 55 | — |
| Tenofovir Alafenamidebrand: Vemlidy | 54 | — |
| Omeprazole | 50 | 17 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-20
- Last updated
- 2010-08-04
Frequently asked questions
- What is Michael Thiim's NPI number?
- Michael Thiim's National Provider Identifier (NPI) is 1902801509, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Thiim's specialty?
- Michael Thiim is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Thiim located?
- Michael Thiim's practice location on file with NPPES is 1 Parkway, Haverhill, MA 01830-6278.
- What is Michael Thiim's phone number?
- The practice phone number listed in the NPPES registry for Michael Thiim is (978) 521-3270.
- Does Michael Thiim accept Medicare?
- Michael Thiim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Thiim's NPI active?
- Yes — Michael Thiim's NPI (1902801509) is active in the NPPES registry as of the last update on 2010-08-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.