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

NPI Status: Active since April 18, 2007

Contact Information

421 COTTAGE GROVE RD
BLOOMFIELD, CT
ZIP 06002
Phone: (860) 242-0034
Fax: (860) 242-3301

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  • Individual
  • Male
  • Internal Medicine

About RICHARD SIAHAAN

This page provides the complete NPI Profile along with additional information for Richard Siahaan, an internist established in Bloomfield, Connecticut with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1013133628 assigned on April 2007. The practitioner's primary taxonomy code is 207R00000X with license number 24303 (CT). The provider is registered as an individual and his NPI record was last updated 9 years ago.

NPI
1013133628
Provider Name
RICHARD SIAHAAN M.D.
Gender
Male
Entity Type
Individual
Location Address
421 COTTAGE GROVE RD BLOOMFIELD, CT 06002
Location Phone
(860) 242-0034
Location Fax
(860) 242-3301
Mailing Address
421 COTTAGE GROVE RD BLOOMFIELD, CT 06002
Mailing Phone
(860) 242-0034
Mailing Fax
(860) 242-3301
Is Sole Proprietor?
No
Enumeration Date
04-18-2007
Last Update Date
12-28-2016
Code Navigator

An internist like Richard Siahaan is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
24303
License State
CT
Taxonomy Description
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

024303 (CT)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
P3592661OTHER (01)CTOXFORD
369877OTHER (01)CTWELLCARE
704554OTHER (01)CTCONNECTICARE
B38469MEDICARE UPIN (02)CT 
80705OTHER (01)CTGREATWEST
7294618OTHER (01)PACIGNA
110001568MEDICARE PIN (08)CT 
004263612OTHER (01)CTCHN
427750OTHER (01)MATUFTS
010024303CT01OTHER (01)CTBLUESHIELD
1751515OTHER (01)GAUNITED HEALTHCARE
004263612MEDICAID (05)CT 
0V0438OTHER (01)CTHEALTHNET
514837OTHER (01)TXAETNA

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1013133628, we treat the final digit (8) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
0
Unchanged
Pos 3
1
Doubled → 2
Pos 4
3
Unchanged
Pos 5
1
Doubled → 2
Pos 6
3
Unchanged
Pos 7
3
Doubled → 6
Pos 8
6
Unchanged
Pos 9
2
Doubled → 4
Check
8
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 1 → 2 1 → 2 3 → 6 2 → 4

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 0 + 2 + 3 + 2 + 3 + 6 + 6 + 4 + 24 = 52

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 52 is 60. The difference is the calculated check digit.

60 - 52 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1013133628.

Other Providers at the Same Location


The following 9 providers are registered at the same or a nearby location.

Internal Medicine
421 COTTAGE GROVE RD, SUITE B
BLOOMFIELD, CT 06002
Orthopaedic Surgery
421 COTTAGE GROVE RD, SUITE A
BLOOMFIELD, CT 06002
Internal Medicine
421 COTTAGE GROVE RD, SUITE B
BLOOMFIELD, CT 06002
Nurse Practitioner (Family)
421 COTTAGE GROVE RD, SUITE A
BLOOMFIELD, CT 06002
Nurse Practitioner (Adult Health)
421 COTTAGE GROVE RD
BLOOMFIELD, CT 06002
Internal Medicine
421 COTTAGE GROVE RD, SUITE A
BLOOMFIELD, CT 06002
Internal Medicine
421 COTTAGE GROVE RD, SUITE B
BLOOMFIELD, CT 06002
Nurse Practitioner (Family)
421 COTTAGE GROVE RD
BLOOMFIELD, CT 06002
Family Medicine
421 COTTAGE GROVE RD
BLOOMFIELD, CT 06002

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1013133628, enumerated as an "individual" on April 18, 2007.

The provider is located at 421 COTTAGE GROVE RD BLOOMFIELD, CT 06002 and the phone number is (860) 242-0034.

Internal Medicine with taxonomy code 207R00000X.

The provider might be accepting Accepts: Oxford Health Plans, Medicare, Medicaid, Wellcare,. Please consult your insurance carrier or call the provider to verify.