Christopher Kreiner, MD
NPI 1417162538 · Emergency Medicine Physician · Cass City, MI
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Kreiner, MD is a Emergency Medicine Physician provider in Cass City, MI (NPI 1417162538).
Provider details
- NPI number
- 1417162538
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301087653 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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 · 1 distinct drug on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 16 | 16 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- 3559 Pine StDeckerville, MI 48427-7703Phone: (810) 376-2835
- 3601 W 13 Mile RdRoyal Oak, MI 48073-6712Phone: (248) 551-0424Fax: (248) 551-5426
Registry dates
- Enumerated
- 2007-05-11
- Last updated
- 2022-11-18
- Certified
- 2022-11-18
Frequently asked questions
- What is Christopher Kreiner's NPI number?
- Christopher Kreiner's National Provider Identifier (NPI) is 1417162538, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Kreiner's specialty?
- Christopher Kreiner is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Kreiner located?
- Christopher Kreiner's practice location on file with NPPES is 4675 Hill St, Cass City, MI 48726-1008.
- What is Christopher Kreiner's phone number?
- The practice phone number listed in the NPPES registry for Christopher Kreiner is (989) 872-6227.
- Does Christopher Kreiner accept Medicare?
- Christopher Kreiner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Kreiner's NPI active?
- Yes — Christopher Kreiner's NPI (1417162538) is active in the NPPES registry as of the last update on 2022-11-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.