What is Michael Duffy's NPI number?

Michael Duffy's National Provider Identifier (NPI) is 1952716870, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Michael Duffy's specialty?

Michael Duffy is listed in the NPPES registry with a primary specialty of Optician (Eye and Vision Services Providers).

Where is Michael Duffy located?

Michael Duffy's practice location on file with NPPES is 121 W San Antonio St, San Marcos, TX 78666-5551.

What is Michael Duffy's phone number?

The practice phone number listed in the NPPES registry for Michael Duffy is (512) 982-9242.

Is Michael Duffy's NPI active?

Yes — Michael Duffy's NPI (1952716870) is active in the NPPES registry as of the last update on 2014-06-30.

IndividualActive

Michael Duffy, D.O.

NPI 1952716870 · Optician · San Marcos, TX

Michael Duffy, D.O. is a Optician provider in San Marcos, TX (NPI 1952716870).

Provider details

NPI number: 1952716870
Entity type: Individual
Primary specialty: OpticianEye and Vision Services Providers
Credential: D.O.
Sex: Male
Sole proprietor: Yes
License: 189067 (TX)

Specialties & taxonomies

OpticianPrimary156FX1800XLicense 189067 (TX)
Eye and Vision Services Providers

Profile Score

Detailed profile(75/100 index)

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

Registry tenure38% of score
11 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

121 W San Antonio St

San Marcos, TX 78666-5551

Phone: (512) 982-9242

Fax: (512) 879-9039

Street-level locationGet directions

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Mailing address