Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Mary Kallmeyer, F-NP

Individual provider Family Nurse Practitioner · NPI 1245705607

Mary Kallmeyer, F-NP is a Nurse Practitioner in Middletown, New York. Qualified in 2018, 8 years ago. Practices with Optum Medical Care PC, a 1,018-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
8
Licensed in
NY
In the registry since
2018
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Practice location Address checks out

111 Maltese Dr
Middletown, NY 10940-2115
Phone: (845) 342-4774
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 343314 (NY)

Record details

NPI number1245705607
Entity typeIndividual (Type 1)
GenderFemale
Credentials F-NP
Sole proprietorYes
NPI enumeratedOctober 11, 2018
Last updated in NPPESOctober 11, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Optum Medical Care Pc — 1018 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients286
Services billed 376 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Optum Medical Care PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1018 clinicians in the practice; 12 are shown here.

Other providers in Middletown