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Active NPI 1417360561 Individual Practitioner Male Practitioner

Dr. Benjamin L Grannan , MD

Neurological Surgery • Seattle, WA

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Benjamin Grannan, MD is a certified Neurological Surgery practicing in Seattle, WA. With approximately 12 years of clinical experience since graduating from Harvard Medical School in 2014, Dr. Grannan delivers high-quality medical care to the local community at 325 9TH AVE.

Dr. Grannan is affiliated with The Association Of University Physicians and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include new patient outpatient office visit, established patient outpatient office visit, telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

325 9th Ave

Seattle, WA 981042420

Telephone 2065205000
Associated Practice Facility / Clinic
🏢 Harborview Medical Center Facility NPI 1053359729

Medicare Profile & Education

Medical School

Harvard Medical School

Graduation Year

2014

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Neurological Surgery in Seattle, WA

Established Specialist (10-20 Yrs)
Practitioner Clinical Experience
12 Yrs -9.1 yrs vs City Avg
City Avg: 21.1 Yrs
State Avg: 24.6 Yrs
Regional Practice Density
131 Specialists

Practicing in Seattle, WA (239 Statewide)

Telehealth Adoption Rate
33.6% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount
64.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Grannan (12 Years) 12 Yrs
Seattle Specialty Average (21.1 Years) 21.1 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
27 27 $253.44 $89.81
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
15 14 $299.63 $106.98

Medical Specialties & State Licenses

CMS Verified: 2021-05-13
Neurological Surgery Primary Specialty

NUCC Taxonomy Code: 207T00000X

State License WA MD61138194

A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.

Hospital & Practice Group Affiliations

The Association Of University Physicians

325 9th Ave, Seattle, WA 981042420

Phone: 2067313000

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
Dr. Sandhya Panch , MD

Internal Medicine - Hematology

NPI 1003043415

Doctor of Medicine (M.D.)

Hilary King , MA, RC

Counselor - Mental Health

NPI 1003068735

Master of Arts, RC

Dr. Afshin Shameli , MD, PhD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1003104357

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

Dr. Timothy Menza , MD, PhD

Internal Medicine - Infectious Disease

NPI 1003105891

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

Dr. Maria Corcorran , MD

Internal Medicine

NPI 1003159013

Doctor of Medicine (M.D.)

Dr. Justin Miller , PhD

Psychologist - Clinical

NPI 1003162314

Doctor of Philosophy (Ph.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

8 Historical Events
📍
Updated Practice Location May 13, 2021

Registered at 325 9TH AVE, SEATTLE, WA 981042420 (Tel: 2065205000)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) May 13, 2021

Neurological Surgery (License #MD61138194 in WA)

NPI Profile Active June 06, 2014

NPI status registered as active in NPPES database

📍
Updated Practice Location June 06, 2014

Registered at MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST., BOSTON, MA 02114 (Tel: 6177265143)

📍
Updated Business Mailing Address June 06, 2014

Registered at MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST., BOSTON, MA 02114 (Tel: 6177265143)

👤
Provider Name / Credentials Updated June 06, 2014

Recorded as BENJAMIN GRANNAN, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) June 06, 2014

Neurological Surgery (License #L-259160 in MA)

🟢
Initial NPI Registration & Enumeration June 06, 2014

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1417360561
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 06, 2014
Last Update: May 13, 2021
Sole Proprietor: No

Mailing Address

Massachusetts General Hospital, 55 Fruit St.

Boston, MA 02114

Phone: 6177265143

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.