Timothy Tetzlaff, DO
NPI 1326040544 · Family Medicine Physician · Sault Sainte Marie, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Tetzlaff, DO is a Family Medicine Physician provider in Sault Sainte Marie, MI (NPI 1326040544).
Provider details
- NPI number
- 1326040544
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- TT007907 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
21 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 145 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 479 | 112 |
| Atorvastatin Calcium | 475 | 121 |
| Losartan Potassium | 425 | 98 |
| Lisinopril | 365 | 83 |
| Omeprazole | 304 | 81 |
| Levothyroxine Sodium | 298 | 52 |
| Metoprolol Succinate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$95 across 5 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
- 2005-06-01
- Last updated
- 2013-03-07
Frequently asked questions
- What is Timothy Tetzlaff's NPI number?
- Timothy Tetzlaff's National Provider Identifier (NPI) is 1326040544, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Tetzlaff's specialty?
- Timothy Tetzlaff is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Tetzlaff located?
- Timothy Tetzlaff's practice location on file with NPPES is 560 Osborn Boulevard, Sault Sainte Marie, MI 49783.
- What is Timothy Tetzlaff's phone number?
- The practice phone number listed in the NPPES registry for Timothy Tetzlaff is (906) 632-1800.
- Does Timothy Tetzlaff accept Medicare?
- Timothy Tetzlaff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Tetzlaff's NPI active?
- Yes — Timothy Tetzlaff's NPI (1326040544) is active in the NPPES registry as of the last update on 2013-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.