Michael Crupper, N.D.
NPI 1407090640 · Naturopath · Portland, OR
Michael Crupper, N.D. is a Naturopath provider in Portland, OR (NPI 1407090640).
Provider details
- NPI number
- 1407090640
- Entity type
- Individual
- Primary specialty
- NaturopathOther Service Providers
- Credential
- N.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 1618 (OR)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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) |
|---|---|
| Zolpidem Tartrate | 18 |
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
Registry dates
- Enumerated
- 2009-04-30
- Last updated
- 2009-04-30
Frequently asked questions
- What is Michael Crupper's NPI number?
- Michael Crupper's National Provider Identifier (NPI) is 1407090640, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Crupper's specialty?
- Michael Crupper is listed in the NPPES registry with a primary specialty of Naturopath (Other Service Providers).
- Where is Michael Crupper located?
- Michael Crupper's practice location on file with NPPES is 4259 Ne Broadway St, Portland, OR 97213-1421.
- What is Michael Crupper's phone number?
- The practice phone number listed in the NPPES registry for Michael Crupper is (503) 235-2259.
- Is Michael Crupper's NPI active?
- Yes — Michael Crupper's NPI (1407090640) is active in the NPPES registry as of the last update on 2009-04-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.