MARY KALLMEYER F-NP
NPI 1245705607
Nurse Practitioner - Family in Middletown, NY
About Mary Kallmeyer F-np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY KALLMEYER F-NP (NPI 1245705607) is an individual family provider in Middletown, New York, licensed in New York (343314) and active in the NPI registry since October 2018. She is enrolled in Medicare PECOS, is affiliated with Vassar Brothers Medical Center, and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Mary Kallmeyer F-np 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
2Medicare enrollment records show Mary Kallmeyer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Middletown, NY 10940
- Reassigned Medicare billing, New York enrollment
- 281 clinicians in this Medicare group
Mount Kisco, NY 10549
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Optum Medical Care PC
- 1,601 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 3
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Vassar Brothers Medical Center
Acute Care Hospitals · Poughkeepsie, NYPutnam Hospital Center
Acute Care Hospitals · Carmel, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10940 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
MIDDLETOWN, NY 10940
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 Kallmeyer's NPI number?
The NPI number for Mary Kallmeyer is 1245705607. It was assigned to this individual provider in the NPPES registry on October 11, 2018.
Where is Mary Kallmeyer located?
Mary Kallmeyer practices at 111 Maltese Dr, Middletown, NY 10940. The listed phone number is (845) 342-4774.
What is Mary Kallmeyer's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Mary Kallmeyer enrolled in Medicare?
Yes. Mary Kallmeyer 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 Kallmeyer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Kallmeyer reassigns Medicare benefits to 2 organizations: Middletown Medical PC (Middletown, NY) and Optum Medical Care, P.C. (Mount Kisco, NY). 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 Kallmeyer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mary Kallmeyer affiliated with any hospitals?
According to CMS data, Mary Kallmeyer is affiliated with Vassar Brothers Medical Center and Putnam Hospital Center.
When was this NPI record last updated?
The NPPES record for Mary Kallmeyer was last updated on October 11, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Mary Kallmeyer, F-NP · NPI 1245705607
Family physician in Middletown, New York. Individual provider, active in the CMS NPPES registry since October 11, 2018.
## Identity
- **NPI:** 1245705607 (Entity type: Individual)
- **Enumerated:** October 11, 2018
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 343314 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 111 MALTESE DR, Middletown, NY 10940-2115
- **Phone:** (845) 342-4774
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Middletown Medical PC (NPI 1902855828, Middletown, NY); Optum Medical Care, P.C. (NPI 1982643003, Mount Kisco, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** October 11, 2018
- **Other identifiers:** Other 343314
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Source: [NPI Profile](https://npiprofile.com/npi/1245705607) · Data from the CMS NPPES public registry.