DR. TAHIR TELLIOGLU M.D.
NPI 1871535534
Psychiatry & Neurology - Addiction Psychiatry in Boston, MA

NPI Status: Active since June 10, 2006

Contact Information

100 BLOSSOM ST
MGH COX CLINIC
BOSTON, MA
ZIP 02114
Phone: (617) 643-5457
Fax: (617) 726-8950

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  • Individual
  • Male
  • Years of Experience 35
  • Psychiatry & Neurology
  • Addiction Psychiatry
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About TAHIR TELLIOGLU

This page provides the complete NPI Profile along with additional information for Tahir Tellioglu, a provider established in Boston, Massachusetts with a medical specialization in Psychiatry & Neurology, focusing in addiction psychiatry and more than 35 years of experience. The healthcare provider is registered in the NPI registry with number 1871535534 assigned on June 2006. The practitioner's primary taxonomy code is 2084P0802X with license number 277173 (MA). The provider is registered as an individual and his NPI record was last updated May 2026.

NPI
1871535534
Provider Name
DR. TAHIR TELLIOGLU M.D.
Gender
Male
Entity Type
Individual
Location Address
100 BLOSSOM ST MGH COX CLINIC BOSTON, MA 02114
Location Phone
(617) 643-5457
Location Fax
(617) 726-8950
Mailing Address
175 JOSEPH CT WARWICK, RI 02886
Mailing Phone
(203) 843-2928
Mailing Fax
(617) 726-8950
Medical School Name
OTHER
Graduation Year
1991
Is Sole Proprietor?
No
Enumeration Date
06-10-2006
Last Update Date
05-07-2026
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Location Map

Secondary Locations

  • 20 Foundry St Fl 2
    Concord, NH 03301
    (617) 643-5457
  • 255 S Orange Ave Ste 104
    Orlando, FL 32801
    (205) 964-2924
  • 1245 Farmington Ave
    West Hartford, CT 06107
    (205) 964-2924
  • 10 Dorrance St Ste 700
    Providence, RI 02903
    (205) 964-2924

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

Psychiatry & Neurology Addiction Psychiatry

Taxonomy Code
2084P0802X
Type
Allopathic & Osteopathic Physicians
License No.
277173
License State
MA
Taxonomy Description
Addiction Psychiatry is a subspecialty of psychiatry that focuses on evaluation and treatment of individuals with alcohol, drug, or other substance-related disorders, and of individuals with dual diagnosis of substance-related and other psychiatric disorders.

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)
12084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

35084 (NH)
22084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

0101284621 (VA)
32084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

MD12140 (RI)
42084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

043151 (CT)
52084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

338440 (NY)
62084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

ME179175 (FL)
72084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

61865 (KY)
82084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

MD29348 (ME)
92084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

C207425 (CA)
102084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

109819 (GA)
112084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

2024-03114 (NC)
122084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

25MA12996600 (NJ)
132084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

MD493016 (PA)
142084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

W0750 (TX)

Insurance Plans Accepted

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

  • Anthem Bronze Access Blue New England HMO 6000/20%/8000 w/HSA - HMO
  • Anthem Bronze Access Blue New England HMO 7000/50%/8000 w/HSA - HMO
  • Anthem Bronze Access Blue New England HMO 7500/30%/10000 Value - HMO
  • Anthem Bronze Access Blue New England HMO 8500/50%/9200 - HMO
  • Anthem Gold Access Blue New England HMO 1000/20%/7500 - HMO
  • Anthem Gold Access Blue New England HMO 2000/0%/6500 RxD - HMO
  • Anthem Gold Access Blue New England HMO 2000/10%/4600 w/HSA - HMO
  • Anthem Gold Access Blue New England HMO 2000/10%/7500 - HMO
  • Anthem Gold Access Blue New England HMO 2000/20%/4600 w/HSA - HMO
  • Anthem Gold Access Blue New England HMO 3000/0%/7500 RxD - HMO
  • Anthem Gold Access Blue New England HMO 500/30%/9000 - HMO
  • Anthem Platinum Access Blue New England HMO 250/10%/3500 - HMO
  • Anthem Silver Access Blue New England HMO 2500/30%/10000 Value - HMO
  • Anthem Silver Access Blue New England HMO 3000/30%/9000 Value - HMO
  • Anthem Silver Access Blue New England HMO 3500/20%/10000 - HMO
  • Anthem Silver Access Blue New England HMO 3500/20%/7250 w/HSA - HMO
  • Anthem Silver Access Blue New England HMO 4000/0%/9000 - HMO
  • Anthem Silver Access Blue New England HMO 4000/0%/9000 RxD - HMO
  • Anthem Silver Access Blue New England HMO 4000/10%/7250 w/HSA - HMO
  • Anthem Silver Access Blue New England HMO 4000/20%/8500 - HMO
  • NH Local Choice HMO Bronze 8000 + $0 Rx list + $0 Virtual Urgent Care - HMO
  • NH Local Choice HMO Gold + $0 Rx list + $0 Virtual Urgent Care - HMO
  • NH Local Choice HMO Gold 1400 + $0 Rx list + $0 Virtual Urgent Care - HMO
  • NH Local Choice HMO HSA Bronze 6000 - HMO
  • NH Local Choice HMO Silver 3500 + $0 Rx list + $0 Virtual Urgent Care - HMO
  • NH Local Choice HMO Silver 5000 + $0 Rx list + $0 Virtual Urgent Care - HMO
  • NH Local HMO Bronze 7500 Standard + $0 Rx list + $0 Virtual Urgent Care - HMO
  • NH Local HMO Gold 2000 Standard + $0 Rx list + $0 Virtual Urgent Care - HMO
  • NH Local HMO Silver 6000 Standard + $0 Rx list + $0 Virtual Urgent Care - HMO

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
11583072OTHER (01)RICAQH PROVIDER ID

Medicare Participation & PECOS Enrollment Status

Tahir Tellioglu is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Tahir Tellioglu is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 5799780037

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20181205003213

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient office or other outpatient visit, 30-39 minutes

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

This service was performed 67 times for 17 patients

Telephone medical discussion with physician, 21-30 minutes

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

This service was performed 57 times for 17 patients

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Tahir Tellioglu is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
MASSACHUSETTS GENERAL HOSPITAL55 FRUIT STREET
BOSTON, MA 02114
(617) 724-9725Acute Care Hospitals

Reviews for DR. TAHIR TELLIOGLU M.D.

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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 1871535534, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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
8
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
1
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
3
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
5
Unchanged
Pos 9
3
Doubled → 6
Check
4
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 7 → 14 → 5 5 → 10 → 1 5 → 10 → 1 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 4 + 1 + 1 + 0 + 3 + 1 + 0 + 5 + 6 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1871535534.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Radiology (Radiation Oncology)
100 BLOSSOM ST, COX 3
BOSTON, MA 02114
Radiology (Therapeutic Radiology)
100 BLOSSOM ST, COX 3
BOSTON, MA 02114
Internal Medicine
100 BLOSSOM ST, HEMATOLOGY ONCOLOGY ASSOCIATES COX 201
BOSTON, MA 02114
Radiology (Therapeutic Radiology)
100 BLOSSOM ST, COX 3
BOSTON, MA 02114
Internal Medicine (Hematology & Oncology)
100 BLOSSOM ST, HEMATOLOGY ONCOLOGY ASSOCIATES COX 2
BOSTON, MA 02114
Registered Nurse
100 BLOSSOM ST
BOSTON, MA 02114
Registered Nurse
100 BLOSSOM ST, COX 5-506C
BOSTON, MA 02114
Radiology (Radiation Oncology)
100 BLOSSOM ST, RADIATION ONCOLOGY
BOSTON, MA 02114
Radiology (Therapeutic Radiology)
100 BLOSSOM ST, COX LL
BOSTON, MA 02114
Internal Medicine
100 BLOSSOM ST, MASSACHUSETTS GENERAL HOSPITAL, COX-5
BOSTON, MA 02114
Physician Assistant (Medical)
100 BLOSSOM ST, COX 630
BOSTON, MA 02114
Radiology (Radiation Oncology)
100 BLOSSOM ST, COX LEVEL 3
BOSTON, MA 02114
Radiology (Therapeutic Radiology)
100 BLOSSOM ST, COX LL
BOSTON, MA 02114
Nurse Practitioner (Family)
100 BLOSSOM ST
BOSTON, MA 02114
Internal Medicine (Hematology & Oncology)
100 BLOSSOM ST, COX 460
BOSTON, MA 02114
Internal Medicine (Hematology & Oncology)
100 BLOSSOM ST, COX 1
BOSTON, MA 02114
Nurse Practitioner
100 BLOSSOM ST
BOSTON, MA 02114
Radiology (Radiation Oncology)
100 BLOSSOM ST
BOSTON, MA 02114
Radiology (Radiation Oncology)
100 BLOSSOM ST
BOSTON, MA 02114
Radiology (Radiation Oncology)
100 BLOSSOM ST, COX 3
BOSTON, MA 02114

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1871535534, enumerated as an "individual" on June 10, 2006.

The provider is located at 100 BLOSSOM ST MGH COX CLINIC BOSTON, MA 02114 and the phone number is (617) 643-5457.

Psychiatry & Neurology with taxonomy code 2084P0802X and a focus in Addiction Psychiatry.

The provider might be accepting Accepts: Anthem Blue Cross and Blue Shield, Harvard Pilgrim. Please consult your insurance carrier or call the provider to verify.

Tahir Tellioglu is affiliated with: MASSACHUSETTS GENERAL HOSPITAL.