DR. YI ZHANG MD, PHD
NPI 1144356866
Anesthesiology - Pain Medicine in Boston, MA

NPI Status: Active since February 26, 2007

Contact Information

MASSACHUSETTS GENERAL HOSPITAL
55 FRUIT STREET
BOSTON, MA
ZIP 02114
Phone: (617) 726-3030

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  • Individual
  • Male
  • Years of Experience 29
  • Anesthesiology
  • Pain Medicine
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About YI ZHANG

This page provides the complete NPI Profile along with additional information for Yi Zhang, a provider established in Boston, Massachusetts with a medical specialization in Anesthesiology, focusing in pain medicine and more than 29 years of experience. The healthcare provider is registered in the NPI registry with number 1144356866 assigned on February 2007. The practitioner's primary taxonomy code is 207LP2900X with license number 235199 (MA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1144356866
Provider Name
DR. YI ZHANG MD, PHD
Gender
Male
Entity Type
Individual
Location Address
MASSACHUSETTS GENERAL HOSPITAL 55 FRUIT STREET BOSTON, MA 02114
Location Phone
(617) 726-3030
Mailing Address
55 FRUIT ST WORCESTER, MA 01609
Mailing Phone
(617) 726-8810
Mailing Fax
Medical School Name
OTHER
Graduation Year
1997
Is Sole Proprietor?
No
Enumeration Date
02-26-2007
Last Update Date
10-30-2025
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Location Map

Secondary Locations

  • 75 Francis St
    Boston, MA 02115
    (617) 732-8210

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 Pain Medicine

Taxonomy Code
207LP2900X
Type
Allopathic & Osteopathic Physicians
License No.
235199
License State
MA
Taxonomy Description
An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.

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)
1207L00000XAllopathic & Osteopathic Physicians

Anesthesiology

L-225516 (MA)

Medicare Participation & PECOS Enrollment Status

Yi Zhang 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.

Yi Zhang 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: 4385781640

    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: I20091024000027

    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, 20-29 minutes

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

This service was performed 15 times for 14 patients

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 258 times for 144 patients

Initial hospital inpatient care per day, typically 50 minutes

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

This service was performed 21 times for 21 patients

Injection of lower or sacral spine facet joint using imaging guidance, single level

This procedure involves injecting medication into the facet joint in your lower back or sacral spine. It's done under imaging guidance to ensure accuracy. The aim is to alleviate pain and inflammation. It's a safe, often effective method for managing spinal discomfort.

This service was performed 18 times for 14 patients

Injection of substance into lower spine canal using imaging guidance

This procedure involves injecting a substance into your lower spine canal, guided by real-time images. It's done to diagnose or treat various conditions. You may feel slight discomfort, but it's generally safe and can provide valuable information for your treatment plan.

This service was performed 23 times for 17 patients

Injection of trigger points, 3 or more muscles

Trigger point injection therapy involves injecting medication into specific areas of your muscles, known as trigger points. These are areas that produce pain and discomfort. If you have three or more muscles affected, each will be treated individually.

This service was performed 19 times for 12 patients

Insertion of tube and injection of substance into lower spine canal using imaging guidance

This procedure involves placing a small tube into your lower spine under imaging guidance. A specific substance is then injected through this tube to help diagnose or treat various conditions. It's performed by skilled professionals to ensure safety and accuracy.

This service was performed 43 times for 34 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 120 times for 72 patients

Ultrasonic guidance for needle placement

Ultrasonic guidance for needle placement is a technique where sound waves create images that help accurately position the needle during procedures. This method ensures precision, minimizes discomfort, and increases safety.

This service was performed 33 times for 22 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. Yi Zhang 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

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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 1144356866, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
1
Unchanged
Pos 3
4
Doubled → 8
Pos 4
4
Unchanged
Pos 5
3
Doubled → 6
Pos 6
5
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
8
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
6
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 4 → 8 3 → 6 6 → 12 → 3 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 8 + 4 + 6 + 5 + 1 + 2 + 8 + 1 + 2 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1144356866.

Other Providers at the Same Location


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

Psychiatry & Neurology (Neurology)
MASSACHUSETTS GENERAL HOSPITAL, WACC 835, 55 FRUIT STREET
BOSTON, MA 02114
Obstetrics & Gynecology
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET - FOUNDERS 4
BOSTON, MA 02114
Urology
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET GRB 1102
BOSTON, MA 02114
Radiology (Diagnostic Radiology)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Internal Medicine
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Emergency Medicine
MASSACHUSETTS GENERAL HOSPITAL, FIVE EMERSON PLACE, SUITE 170
BOSTON, MA 02114
Emergency Medicine
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Anesthesiology
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Internal Medicine
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Internal Medicine (Endocrinology, Diabetes & Metabolism)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST. REV.BHE 5
BOSTON, MA 02114
Thoracic Surgery (Cardiothoracic Vascular Surgery)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Internal Medicine
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET/PEDIATRICS
BOSTON, MA 02114
Internal Medicine (Infectious Disease)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST., COX-5
BOSTON, MA 02114
Internal Medicine
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Anesthesiology
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Dermatology
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Physician Assistant (Surgical)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET, BULFINCH 119
BOSTON, MA 02114
Radiology (Diagnostic Radiology)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Physical Therapist
MASSACHUSETTS GENERAL HOSPITAL, 15 PARKMAN ST WACC 134
BOSTON, MA 02114
Pathology (Anatomic Pathology & Clinical Pathology)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1144356866, enumerated as an "individual" on February 26, 2007.

The provider is located at MASSACHUSETTS GENERAL HOSPITAL 55 FRUIT STREET BOSTON, MA 02114 and the phone number is (617) 726-3030.

Anesthesiology with taxonomy code 207LP2900X and a focus in Pain Medicine.

Yi Zhang is affiliated with: MASSACHUSETTS GENERAL HOSPITAL.