DR. MARY C BLATT OD
NPI 1437154499
Optometrist in Saint Louis, MO
About Dr. Mary C Blatt Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARY C BLATT OD (NPI 1437154499) is an individual optometrist in Saint Louis, Missouri, licensed in Missouri (T03121) and active in the NPI registry since June 2005. She is enrolled in Medicare PECOS and is a graduate of Other (1993).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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. Mary C Blatt Od 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
4Medicare enrollment records show Mary Blatt reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Creve Coeur, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 13 clinicians in this Medicare group
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 105 clinicians in this Medicare group
Washington, MO 63090
- Reassigned Medicare billing, Missouri enrollment
- 24 clinicians in this Medicare group
Independence, MO 64057
- Reassigned Medicare billing, Missouri enrollment
- 32 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 11
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 63141 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
CREVE COEUR, MO 63141
SAINT LOUIS, MO 63141
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 Mary Blatt's NPI number?
The NPI number for Mary Blatt is 1437154499. It was assigned to this individual provider in the NPPES registry on June 16, 2005.
Where is Mary Blatt located?
Mary Blatt practices at 450 N New Ballas Rd Dept Ophthalmology, Ste 260, Saint Louis, MO 63141. The listed phone number is (314) 362-3937.
What is Mary Blatt's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Mary Blatt enrolled in Medicare?
Yes. Mary Blatt 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 Mary Blatt's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Blatt reassigns Medicare benefits to 4 organizations: Mercy Health, Services, LLC (Creve Coeur, MO), Washington University (Saint Louis, MO), Mercy Clinic Ophthalmology LLC (Washington, MO) and Visionworks, Inc. (Independence, MO). 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 Mary Blatt's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Blatt accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 13 other insurers list Mary Blatt 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 Mary Blatt was last updated on May 9, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Mary C Blatt, OD · NPI 1437154499
Optometrist provider in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 16, 2005.
## Identity
- **NPI:** 1437154499 (Entity type: Individual)
- **Enumerated:** June 16, 2005
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** T03121 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 450 N NEW BALLAS RD, DEPT OPHTHALMOLOGY, STE 260, Saint Louis, MO 63141-6859
- **Phone:** (314) 362-3937 · **Fax:** (866) 505-8818
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Mercy Health, Services, LLC (NPI 1689714743, Creve Coeur, MO); Washington University (NPI 1841221116, Saint Louis, MO); Mercy Clinic Ophthalmology LLC (NPI 1003179656, Washington, MO); Visionworks, Inc. (NPI 1649203308, Independence, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1993
## Record status
- **NPPES last updated:** May 9, 2024
- **Other identifiers:** Medicaid 317834034 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1437154499) · Data from the CMS NPPES public registry.