What is Gregory Shaffer's NPI number?

Gregory Shaffer's National Provider Identifier (NPI) is 1649063462, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Gregory Shaffer's specialty?

Gregory Shaffer is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).

Where is Gregory Shaffer located?

Gregory Shaffer's practice location on file with NPPES is 901 S Oakland St, Saint Johns, MI 48879-2255.

What is Gregory Shaffer's phone number?

The practice phone number listed in the NPPES registry for Gregory Shaffer is (989) 224-8155.

Is Gregory Shaffer's NPI active?

Yes — Gregory Shaffer's NPI (1649063462) is active in the NPPES registry as of the last update on 2026-03-02.

IndividualActive

Gregory Shaffer

NPI 1649063462 · Pharmacist · Saint Johns, MI

Gregory Shaffer is a Pharmacist provider in Saint Johns, MI (NPI 1649063462).

Provider details

NPI number: 1649063462
Entity type: Individual
Primary specialty: PharmacistPharmacy Service Providers
Sex: Male
Sole proprietor: Yes
License: 5315229591 (MI)

Specialties & taxonomies

PharmacistPrimary183500000XLicense 5315229591 (MI)
Pharmacy Service Providers

Profile Score

Established profile(54/100 index)

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

Registry tenure38% of score
1 yr 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

901 S Oakland St

Saint Johns, MI 48879-2255

Phone: (989) 224-8155

Street-level locationGet directions

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Mailing address