What is Colin Mergens's NPI number?

Colin Mergens's National Provider Identifier (NPI) is 1649109158, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Colin Mergens's specialty?

Colin Mergens is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).

Where is Colin Mergens located?

Colin Mergens's practice location on file with NPPES is 3738 Walnut Ave, Carmichael, CA 95608-3054.

What is Colin Mergens's phone number?

The practice phone number listed in the NPPES registry for Colin Mergens is (916) 971-7220.

Is Colin Mergens's NPI active?

Yes — Colin Mergens's NPI (1649109158) is active in the NPPES registry as of the last update on 2026-05-19.

IndividualActive

Colin Mergens

NPI 1649109158 · Speech-Language Pathologist · Carmichael, CA

Colin Mergens is a Speech-Language Pathologist provider in Carmichael, CA (NPI 1649109158).

Provider details

NPI number: 1649109158
Entity type: Individual
Primary specialty: Speech-Language PathologistSpeech, Language and Hearing Service Providers
Sex: Male
Sole proprietor: No
License: 33196 (CA)

Specialties & taxonomies

Speech-Language PathologistPrimary235Z00000XLicense 33196 (CA)
Speech, Language and Hearing Service Providers

Profile Score

Established profile(52/100 index)

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

Registry tenure38% of score
Under 1 yr in 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

3738 Walnut Ave

Carmichael, CA 95608-3054

Phone: (916) 971-7220

Street-level locationGet directions

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Mailing address