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RICHARD SIAHAAN M.D.
NPI 1013133628
Internal Medicine in Bloomfield, CT

Active since April 18, 2007
421 COTTAGE GROVE RD, BLOOMFIELD, CT 06002(860) 242-0034(860) 242-3301 Get Directions Write a Review

NPPES record last updated: December 28, 2016. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Richard Siahaan M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RICHARD SIAHAAN M.D. (NPI 1013133628) is an individual internal medicine provider in Bloomfield, Connecticut, licensed in Connecticut (24303) and active in the NPI registry since April 2007.

NPPES Registry Identity

NPI1013133628
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameRICHARD SIAHAANCredential: M.D.
Location Address421 COTTAGE GROVE RDBloomfield, CT 06002-3170
Mailing Address421 Cottage Grove RdBloomfield, CT 06002-3170 · (860) 242-0034 · Fax (860) 242-3301
Phone(860) 242-0034
Fax(860) 242-3301
Sole ProprietorNo
Enumeration DateApril 18, 2007
Last NPPES UpdateDecember 28, 2016
✔ NPI 1013133628 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in CT · 24303✔ Licensed in CT · 024303
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
421 COTTAGE GROVE RD, Bloomfield, CT 06002
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Other Identifiers 14

OtherP3592661CT · Oxford
Other369877CT · Wellcare
Other704554CT · Connecticare
Medicare UPINB38469CT
Other80705CT · Greatwest
Other7294618PA · Cigna
Medicare PIN110001568CT
Other004263612CT · Chn
Other427750MA · Tufts
Other010024303CT01CT · Blueshield
Other1751515GA · United Healthcare
Medicaid004263612CT
Other0V0438CT · Healthnet
Other514837TX · Aetna

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MATTIA BROSE APRN
Nurse Practitioner (Family)
421 COTTAGE GROVE RD
BLOOMFIELD, CT 06002
Capitol Planning Region (860) 242-3990
JILL T NELSON APRN
Nurse Practitioner (Family)
421 COTTAGE GROVE RD, SUITE A
BLOOMFIELD, CT 06002
Capitol Planning Region (860) 242-3393
DR. ERIC ROBIN GOLDBERG DO
Internal Medicine
421 COTTAGE GROVE RD, SUITE B
BLOOMFIELD, CT 06002
Capitol Planning Region (860) 242-3933
CHRISTINE MARIE HANNA MD
Family Medicine
421 COTTAGE GROVE RD
BLOOMFIELD, CT 06002
Capitol Planning Region (860) 242-0034
GILBERTO RAMIREZ MD
Internal Medicine
421 COTTAGE GROVE RD, SUITE A
BLOOMFIELD, CT 06002
Capitol Planning Region (860) 242-3933
ROBERT ALLEN GREEN MD
Orthopaedic Surgery
421 COTTAGE GROVE RD, SUITE A
BLOOMFIELD, CT 06002
Capitol Planning Region (860) 286-0182
DONALD MAXWELL MD
Internal Medicine
421 COTTAGE GROVE RD, SUITE B
BLOOMFIELD, CT 06002
Capitol Planning Region (860) 242-0034
THE URGENT CARE CENTER OF CONNECTICUT, LLC
Internal Medicine
421 COTTAGE GROVE RD, SUITE B
BLOOMFIELD, CT 06002
Capitol Planning Region (860) 242-3933

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 Richard Siahaan's NPI number?

The NPI number for Richard Siahaan is 1013133628. It was assigned to this individual provider in the NPPES registry on April 18, 2007.

Where is Richard Siahaan located?

Richard Siahaan practices at 421 Cottage Grove Rd, Bloomfield, CT 06002. The listed phone number is (860) 242-0034.

What is Richard Siahaan's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Richard Siahaan was last updated on December 28, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.