Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. GENNADIY FUZAYLOV MD
NPI 1720079627
Anesthesiology in Boston, MA

Active since October 31, 2005PECOS Enrolled
55 FRUIT ST, CLN 309, BOSTON, MA 02114(617) 726-3030(617) 726-7536 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

  • Individual
  • Male
  • Years of Experience 40
  • Anesthesiology
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About GENNADIY FUZAYLOV

This page provides the complete NPI Profile along with additional information for Gennadiy Fuzaylov, an anesthesiologist established in Boston, Massachusetts with a medical specialization in Anesthesiology and more than 40 years of experience. The healthcare provider is registered in the NPI registry with number 1720079627 assigned on October 2005. The practitioner's primary taxonomy code is 207L00000X with license number 210490 (MA). The provider is registered as an individual and his NPI record was last updated July 2026.

NPI
1720079627
Provider Name
DR. GENNADIY FUZAYLOV MD
Gender
Male
Entity Type
Individual
Location Address
55 FRUIT ST CLN 309 BOSTON, MA 02114
Location Phone
(617) 726-3030
Location Fax
(617) 726-7536
Mailing Address
PO BOX 9142 CHARLESTOWN, MA 02129
Mailing Phone
(617) 724-0287
Mailing Fax
(617) 726-2894
Medical School Name
OTHER
Graduation Year
1987
Is Sole Proprietor?
No
Enumeration Date
10-31-2005
Last Update Date
07-13-2026
Code Navigator

An anesthesiologist like Gennadiy Fuzaylov manages the care of surgical patients and pain relief through drug administration that reduces or eliminates pain during an operation, medical procedure or during labor and delivery of babies. During surgical procedures anesthesiologists are responsible for adjusting the amount of anesthetic, monitoring the patient's heart rate, body temperature, blood pressure and breathing.

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

Anesthesiology

Taxonomy Code
207L00000X
Type
Allopathic & Osteopathic Physicians
License No.
210490
License State
MA
Taxonomy Description
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

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.

*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
0180394MEDICAID (05)MA 
J25410OTHER (01)MABCBS MA
210490OTHER (01)MATUFTS HEALTH PLAN

Medicare Participation & PECOS Enrollment Status

Gennadiy Fuzaylov 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.

Gennadiy Fuzaylov 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: 1557542198

    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: I20110302000120

    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

Reviews for DR. GENNADIY FUZAYLOV MD

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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 1720079627, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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
7
Unchanged
Pos 3
2
Doubled → 4
Pos 4
0
Unchanged
Pos 5
0
Doubled → 0
Pos 6
7
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
6
Unchanged
Pos 9
2
Doubled → 4
Check
7
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 2 → 4 0 → 0 9 → 18 → 9 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 0 + 7 + 1 + 8 + 6 + 4 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1720079627.

Other Providers at the Same Location


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

Internal Medicine (Gastroenterology)
55 FRUIT ST
BOSTON, MA 02114
Psychiatry & Neurology (Psychiatry)
55 FRUIT ST, WARREN 1220
BOSTON, MA 02114
Thoracic Surgery (Cardiothoracic Vascular Surgery)
55 FRUIT ST, MGH, BULFINCH 2
BOSTON, MA 02114
Psychologist
55 FRUIT ST, YAW 6A MASSACHUSSETTS GENERAL HOSPITAL
BOSTON, MA 02114
Anesthesiology (Critical Care Medicine)
55 FRUIT ST, ANESTHESIA ASSOCIATES GRB 406E
BOSTON, MA 02114
Internal Medicine (Rheumatology)
55 FRUIT ST, RHEUMATOLOGY ASSOCIATES YAW 2100
BOSTON, MA 02114
Neurological Surgery
55 FRUIT ST, MASSACHUSETTS GENERAL HOSPITAL, WAC 745K
BOSTON, MA 02114
Anesthesiology
55 FRUIT ST, WHITE 525
BOSTON, MA 02114
Psychiatry & Neurology (Psychiatry)
55 FRUIT ST, MASSACHUSETTS GENERAL HOSPITAL YAW 6 6 900
BOSTON, MA 02114
Anesthesiology (Critical Care Medicine)
55 FRUIT ST, CLN 3
BOSTON, MA 02114
Psychiatry & Neurology (Psychiatry)
55 FRUIT ST, WAC 812
BOSTON, MA 02114
Anesthesiology
55 FRUIT ST, ANESTHESIA ASSOCIATES
BOSTON, MA 02114
Neurological Surgery
55 FRUIT ST, WHT 502 NEUROSURGERY MGH
BOSTON, MA 02114
Pediatrics (Neonatal-Perinatal Medicine)
55 FRUIT ST, FND 530 NEW BORN SERVICE
BOSTON, MA 02114
Internal Medicine (Hematology)
55 FRUIT ST, ZERO EMERSON PLACE SUITE 118
BOSTON, MA 02114
Pediatrics (Pediatric Gastroenterology)
55 FRUIT ST, VBK 107
BOSTON, MA 02114
Internal Medicine
55 FRUIT ST, WOMENS HEALTH ASSOCIATES YAW 4720B
BOSTON, MA 02114
Internal Medicine
55 FRUIT ST, ZERO EMERSON PLACE SUITE 3B
BOSTON, MA 02114
Pathology (Anatomic Pathology)
55 FRUIT ST, WRN 325
BOSTON, MA 02114
Pediatrics (Neonatal-Perinatal Medicine)
55 FRUIT ST, MASSACHUSETTS GENERAL HOSPITAL NEW BORN SERVICE FND 442
BOSTON, MA 02114

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720079627, enumerated as an "individual" on October 31, 2005.

The provider is located at 55 FRUIT ST CLN 309 BOSTON, MA 02114 and the phone number is (617) 726-3030.

Anesthesiology with taxonomy code 207L00000X.

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