DR. RACHEL KNOWLTON O.D.
NPI 1548700354
Optometrist in Denver, CO
About Dr. Rachel Knowlton O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RACHEL KNOWLTON O.D. (NPI 1548700354) is an individual optometrist in Denver, Colorado, licensed in Colorado (3212) and active in the NPI registry since February 2017. She is enrolled in Medicare PECOS and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Rachel Knowlton O.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Rachel Knowlton reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Denver, CO 80209
- Reassigned Medicare billing, Colorado enrollment
- 2 clinicians in this Medicare group
Denver, CO 80222
- Reassigned Medicare billing, Colorado enrollment
- 70 clinicians in this Medicare group
Denver, CO 80202
- Reassigned Medicare billing, Colorado enrollment
- Medicare enrollment name: Professional Vision Care PC
- 6 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80210 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Rachel Knowlton's NPI number?
The NPI number for Rachel Knowlton is 1548700354. It was assigned to this individual provider in the NPPES registry on February 27, 2017.
Where is Rachel Knowlton located?
Rachel Knowlton practices at 1632 S Broadway, Denver, CO 80210. The listed phone number is (303) 844-3937.
What is Rachel Knowlton's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Rachel Knowlton enrolled in Medicare?
Yes. Rachel Knowlton is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Rachel Knowlton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rachel Knowlton reassigns Medicare benefits to 3 organizations: (Denver, CO), One Hour Optical Medical Services, PC (Denver, CO) and Professional Vision Care, P.C. (Denver, CO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Rachel Knowlton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Rachel Knowlton accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 1 other insurer list Rachel Knowlton as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Rachel Knowlton was last updated on February 16, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Rachel Knowlton, O.D. · NPI 1548700354
Optometrist provider in Denver, Colorado. Individual provider, active in the CMS NPPES registry since February 27, 2017.
## Identity
- **NPI:** 1548700354 (Entity type: Individual)
- **Enumerated:** February 27, 2017
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 3212 (Colorado)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1632 S BROADWAY, Denver, CO 80210-2610
- **Phone:** (303) 844-3937
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): (NPI 1043211477, Denver, CO); One Hour Optical Medical Services, PC (NPI 1770648297, Denver, CO); Professional Vision Care, P.C. (NPI 1376974790, Denver, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** February 16, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1548700354) · Data from the CMS NPPES public registry.