Karisa Ritter, OD
NPI 1588649628 · Optometrist · Mt Pleasant, MI
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karisa Ritter, OD is a Optometrist provider in Mt Pleasant, MI (NPI 1588649628).
Provider details
- NPI number
- 1588649628
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- License
- KR004202 (MI)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 57 | 13 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-13
- Last updated
- 2016-08-26
Frequently asked questions
- What is Karisa Ritter's NPI number?
- Karisa Ritter's National Provider Identifier (NPI) is 1588649628, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karisa Ritter's specialty?
- Karisa Ritter is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Karisa Ritter located?
- Karisa Ritter's practice location on file with NPPES is 4164 E Blue Grass Rd, Mt Pleasant, MI 48858-7967.
- What is Karisa Ritter's phone number?
- The practice phone number listed in the NPPES registry for Karisa Ritter is (989) 772-9481.
- Does Karisa Ritter accept Medicare?
- Karisa Ritter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karisa Ritter's NPI active?
- Yes — Karisa Ritter's NPI (1588649628) is active in the NPPES registry as of the last update on 2016-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.