OrganizationActive
Thomas M. Grischow, O.D., Inc.
NPI 1144340589 · Optometrist · Warren, OH
Thomas M. Grischow, O.D., Inc. is a Optometrist organization in Warren, OH (NPI 1144340589).
Provider details
- NPI number
- 1144340589
- Entity type
- Organization
- Primary specialty
- OptometristEye and Vision Services Providers
- Organization subpart
- No
- Authorized official
- Thomas Grischow, President(330) 856-1782
- License
- 4457 T1113 (OH)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
Detailed profile(89/100 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
199 Niles Cortland Rd Se
Warren, OH 44484-2426
Phone: (330) 856-1782
Fax: (330) 856-2760
Street-level locationGet directions
Mailing address
199 Niles Cortland Rd Se
Warren, OH 44484-2426
Other names (DBA / former)
- Doing business as
- Howland Eye Center
Registry dates
- Enumerated
- 2007-03-30
- Last updated
- 2008-04-20
Frequently asked questions
- What is Thomas M. Grischow, O.D., Inc.'s NPI number?
- Thomas M. Grischow, O.D., Inc.'s National Provider Identifier (NPI) is 1144340589, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Thomas M. Grischow, O.D., Inc.?
- Thomas M. Grischow, O.D., Inc. is classified in the NPPES registry as Optometrist (Eye and Vision Services Providers).
- Where is Thomas M. Grischow, O.D., Inc. located?
- Thomas M. Grischow, O.D., Inc.'s practice location on file with NPPES is 199 Niles Cortland Rd Se, Warren, OH 44484-2426.
- What is Thomas M. Grischow, O.D., Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Thomas M. Grischow, O.D., Inc. is (330) 856-1782.
- Who is the authorized official for Thomas M. Grischow, O.D., Inc.?
- The authorized official listed on Thomas M. Grischow, O.D., Inc.'s NPPES record is Thomas Grischow, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Thomas M. Grischow, O.D., Inc.'s NPI active?
- Yes — Thomas M. Grischow, O.D., Inc.'s NPI (1144340589) is active in the NPPES registry as of the last update on 2008-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.