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

Dr. John Patrick Aguilar Sia, MD

Individual provider Nephrology Physician · NPI 1255597464

Dr. John Patrick Aguilar Sia, MD is a Nephrology in Manchester, New Hampshire. Qualified in 2006, 20 years ago. Practices with Nephrology Associates, P. A., a 4-clinician group and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
20
Licensed in
NH
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1750 Elm St Ste 201C
Manchester, NH 03104-2903
Phone: (603) 621-2948
Fax: (603) 621-4126
Show map & directions

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

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 17413 (NH)

Record details

NPI number1255597464
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 6, 2008
Last updated in NPPESApril 28, 2016

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Group practice Nephrology Associates, P. A. — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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