IndividualActive
Gary Spencer, O.D.
NPI 1720154818 · Optometrist · Muskegon, MI
Gary Spencer, O.D. is a Optometrist provider in Muskegon, MI (NPI 1720154818).
Provider details
- NPI number
- 1720154818
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4901002683 (MI)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
3106 Glade St
Muskegon, MI 49444-2706
Phone: (231) 733-9669
Fax: (231) 733-9669
Street-level locationGet directions
Mailing address
2624 Oxford Cir
Ann Arbor, MI 48103-2447
Registry dates
- Enumerated
- 2006-11-28
- Last updated
- 2019-04-03
Frequently asked questions
- What is Gary Spencer's NPI number?
- Gary Spencer's National Provider Identifier (NPI) is 1720154818, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Spencer's specialty?
- Gary Spencer is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Gary Spencer located?
- Gary Spencer's practice location on file with NPPES is 3106 Glade St, Muskegon, MI 49444-2706.
- What is Gary Spencer's phone number?
- The practice phone number listed in the NPPES registry for Gary Spencer is (231) 733-9669.
- Is Gary Spencer's NPI active?
- Yes — Gary Spencer's NPI (1720154818) is active in the NPPES registry as of the last update on 2019-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.