What is John Diddams's NPI number?

John Diddams's National Provider Identifier (NPI) is 1720390941, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is John Diddams's specialty?

John Diddams is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).

Where is John Diddams located?

John Diddams's practice location on file with NPPES is 425 E Michigan St, Marquette, MI 49855-3827.

What is John Diddams's phone number?

The practice phone number listed in the NPPES registry for John Diddams is (906) 228-6589.

Is John Diddams's NPI active?

Yes — John Diddams's NPI (1720390941) is active in the NPPES registry as of the last update on 2010-07-02.

IndividualActive

John Diddams, M.D.

NPI 1720390941 · Otolaryngology Physician · Marquette, MI

John Diddams, M.D. is a Otolaryngology Physician provider in Marquette, MI (NPI 1720390941).

Provider details

NPI number: 1720390941
Entity type: Individual
Primary specialty: Otolaryngology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: Yes
License: 4301032322 (MI)

Specialties & taxonomies

Otolaryngology PhysicianPrimary207Y00000XLicense 4301032322 (MI)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(83/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
15 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.

Practice location

425 E Michigan St

Marquette, MI 49855-3827

Phone: (906) 228-6589

Street-level locationGet directions

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Mailing address