Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Marian Katz Holdridge, RD, CDN

Individual provider Obesity and Weight Management Nutrition Registered Dietitian · NPI 1497212856

Marian Katz Holdridge, RD, CDN is registered under Registered Dietitian OR Nutrition Professional in Middletown, New York. Qualified in 1988, 38 years ago. Practices with Middletown Medical PC, a 177-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
38
Licensed in
NY
In the registry since
2019
What do these letters mean?
RD — Registered Dietitian
A credentialed nutrition professional.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

419 E Main St
Middletown, NY 10940-2536
Phone: (845) 342-4774
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obesity and Weight Management Nutrition Registered Dietitian (primary) Taxonomy 133VN1201X · Licence 000685 (NY)

Record details

NPI number1497212856
Entity typeIndividual (Type 1)
GenderFemale
Credentials RD , CDN
Sole proprietorYes
NPI enumeratedFebruary 21, 2019
Last updated in NPPESApril 2, 2026
Certification dateApril 2, 2026

Medicare enrollment

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

Medicare specialtyREGISTERED DIETITIAN OR NUTRITION PROFESSIONAL
Medical schoolOTHER
Graduated 1988 (38 years in practice)
Group practice Middletown Medical Pc — 177 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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 patients18
Services billed 116 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.

Colleagues at Middletown Medical PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 177 clinicians in the practice; 12 are shown here.