MICHAEL LLEWELLYN PA-C
NPI 1346688504
Physician Assistant - Surgical in Boston, MA

NPI Status: Active since June 10, 2013

Contact Information

55 FRUIT ST
BOSTON, MA
ZIP 02114
Phone: (617) 643-9253

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  • Individual
  • Male
  • Years of Experience 13
  • Physician Assistant
  • Surgical
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About MICHAEL LLEWELLYN

This page provides the complete NPI Profile along with additional information for Michael Llewellyn, a provider established in Boston, Massachusetts with a medical specialization in Physician Assistant, focusing in surgical and more than 13 years of experience. The healthcare provider is registered in the NPI registry with number 1346688504 assigned on June 2013. The practitioner's primary taxonomy code is 363AS0400X. The provider is registered as an individual and his NPI record was last updated 2 years ago.

NPI
1346688504
Provider Name
MICHAEL LLEWELLYN PA-C
Gender
Male
Entity Type
Individual
Location Address
55 FRUIT ST BOSTON, MA 02114
Location Phone
(617) 643-9253
Mailing Address
1275 YORK AVE 8TH FLOOR, C BUILDING NEW YORK, NY 10065
Mailing Phone
(516) 313-3270
Medical School Name
OTHER
Graduation Year
2013
Is Sole Proprietor?
No
Enumeration Date
06-10-2013
Last Update Date
01-11-2023
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Location Map

Secondary Locations

  • 1275 York Ave 8th Floor, C Building
    New York, NY 10065
    (516) 313-3270

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

Physician Assistant Surgical

Taxonomy Code
363AS0400X
Type
Physician Assistants & Advanced Practice Nursing Providers

Medicare Participation & PECOS Enrollment Status

Michael Llewellyn 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.

Michael Llewellyn 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: 7719204585

    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: I20230127000962

    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

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. Michael Llewellyn 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 MICHAEL LLEWELLYN PA-C

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1346688504
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
23861281650
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 3 + 8 + 6 + 1 + 2 + 8 + 1 + 6 + 5 + 0 + 24 = 66
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 66 = 44

The NPI number 1346688504 is valid because the calculated check digit 4 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


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

NPI Name / Type Taxonomy Address
1982600144 ANDREW T CHAN M.D.
Individual
Internal Medicine (Gastroenterology)55 FRUIT ST
BOSTON, MA 02114
(617) 726-3212
1538166889 KALOYAN S TANEV MD
Individual
Psychiatry & Neurology (Psychiatry)55 FRUIT ST WARREN 1220
BOSTON, MA 02114
(617) 726-7511
1124028238DR. DEBRA F WEINSTEIN MD
Individual
Internal Medicine (Gastroenterology)55 FRUIT ST
BOSTON, MA 02114
(617) 724-6007
1225023658 BRADEN KUO M.D.
Individual
Internal Medicine (Gastroenterology)55 FRUIT ST BLAKE 4, GI UNIT. MGH
BOSTON, MA 02114
(617) 726-2132
1881680767DR. NANCY J GAGLIANO MD
Individual
Internal Medicine55 FRUIT ST 4710B
BOSTON, MA 02114
(617) 724-6700
1285620161DR. DAVID F TORCHIANA MD
Individual
Thoracic Surgery (Cardiothoracic Vascular Surgery)55 FRUIT ST BUL 119
BOSTON, MA 02114
(617) 724-9644
1205823176 DAVID MICHAEL SHAHIAN MD
Individual
Thoracic Surgery (Cardiothoracic Vascular Surgery)55 FRUIT ST MGH, BULFINCH 2
BOSTON, MA 02114
(617) 643-4335
1396734570DR. JAY JEFFREY SCHNITZER M.D., PH.D.
Individual
Surgery55 FRUIT ST PEDIATRIC SURGERY, WRN 11
BOSTON, MA 02114
(617) 724-1602
1538158696DR. THEODORE JOSEPH ONGARO MD
Individual
Urology55 FRUIT ST GRB 1102
BOSTON, MA 02114
(617) 726-3012
1922098730DR. WEI CHAO MD PHD
Individual
Anesthesiology55 FRUIT ST CLN 3
BOSTON, MA 02114
(617) 724-3267
1194715904DR. MAURICE ALBRIGHT MD
Individual
Orthopaedic Surgery55 FRUIT ST YAW 3E ORTHOPAEDIC ASSOCIATES
BOSTON, MA 02114
(617) 726-8523
1841280674DR. GREGORY YVES LAUWERS MD
Individual
Pathology (Anatomic Pathology)55 FRUIT ST PATHOLOGY ASSOCIATES WRN 2
BOSTON, MA 02114
(617) 726-2931
1609866516DR. KENT BALANIS LEWANDROWSKI MD
Individual
Pathology (Anatomic Pathology & Clinical Pathology)55 FRUIT ST GRB 5 PATHOLOGY ASSOCIATES
BOSTON, MA 02114
(617) 726-2275
1114917986DR. JEFFREY A GELFAND MD
Individual
Allergy & Immunology55 FRUIT ST S50-801 INFECTIOUS DISEASE ASSOCIATES
BOSTON, MA 02114
(617) 726-1796
1750371563DR. KATHLEEN BRIGID TRAINOR PSYD
Individual
Psychologist55 FRUIT ST YAW 6A MASSACHUSSETTS GENERAL HOSPITAL
BOSTON, MA 02114
(617) 724-6300
1073503884DR. BOYD TAYLOR THOMPSON MD
Individual
Internal Medicine (Pulmonary Disease)55 FRUIT ST
BOSTON, MA 02114
(617) 724-3705
1992795512DR. RAJESH TIM GANDHI MD
Individual
Internal Medicine (Infectious Disease)55 FRUIT ST FND 8 INFECTIOUS DISEASE ASSOCIATES
BOSTON, MA 02114
(617) 726-8403
1821088451DR. SHIHAB AHMED MBBS
Individual
Anesthesiology (Pain Medicine)55 FRUIT ST CLN 309 ANESTHESIA ASSOCIATES
BOSTON, MA 02114
(617) 726-3030
1528058153DR. MARIE B DEMAY MD
Individual
Internal Medicine (Endocrinology, Diabetes & Metabolism)55 FRUIT ST WEL 5
BOSTON, MA 02114
(617) 726-8720
1225028863DR. MICHELE TRUCKSIS MD PHD
Individual
Internal Medicine55 FRUIT ST INFECTIOUS DISEASE ASSOCIATES GRJ 504
BOSTON, MA 02114
(617) 726-3812

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1346688504, enumerated in the NPI registry as an "individual" on June 10, 2013

The provider is located at 55 Fruit St Boston, Ma 02114 and the phone number is (617) 643-9253

The provider's speciality is Physician Assistant with taxonomy code 363AS0400X with a focus in Surgical

The provider has more than 13 years of experience.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary 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.

The practitioner is affiliated to the following hospital(s): MASSACHUSETTS GENERAL HOSPITAL. Hospital affiliations are identified through self-reporting data and service claims based on the place of service.

This NPI record was last updated on June 10, 2013. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.