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DR. WILLIAM P DILLON MD
NPI 1386609337
Radiology - Neuroradiology in San Francisco, CA

Active since April 20, 2006PECOS EnrolledAccepts Medicare Assignment
74.46/100
CMS Quality Rating
505 PARNASSUS AVE, SAN FRANCISCO, CA 94143(415) 353-1668(415) 353-8593 Get Directions Write a Review

NPPES record last updated: June 6, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. William P Dillon Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM P DILLON MD (NPI 1386609337) is an individual neuroradiology provider in San Francisco, California, licensed in California (G47564) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1978).

NPPES Registry Identity

NPI1386609337
Entity TypeIndividualMale
Primary Taxonomy2085N0700X
Provider Legal NameDR. WILLIAM P DILLONCredential: MD
Location Address505 PARNASSUS AVESan Francisco, CA 94143-2204
Mailing Address1635 Divisadero St, Ste 625, Box 1821San Francisco, CA 94143-0001
Phone(415) 353-1668
Fax(415) 353-8593
Sole ProprietorNo
Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 1978
Enumeration DateApril 20, 2006
Last NPPES UpdateJune 6, 2008
✔ NPI 1386609337 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · NeuroradiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085N0700X
License✔ Licensed in CA · G47564
Definition
A radiologist who diagnoses and treats diseases utilizing imaging procedures as they relate to the brain, spine and spinal cord, head, neck and organs of special sense in adults and children.
Also ListedRadiology · Diagnostic RadiologyTaxonomy 2085R0202X · License G47564 (CA)
505 PARNASSUS AVE, San Francisco, CA 94143
Open in Google Maps ↗

Other Identifiers 3

Medicare UPINA50739CA
Medicaid00G475640CA
Medicare PIN00G475640CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. William P Dillon Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2264517036
PECOS Enrollment IDI20080304000927
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Ct scan head or brain without contrast 70450
A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.
63 services61 patients
Review by radiologist of ct guidance for needle placement 77012
This process involves a radiologist examining CT scan images to accurately guide a needle's placement within the body. This technique is often used for biopsies or treatments, ensuring precision and safety.
26 services22 patients
Mri scan of brain before and after contrast 70553
An MRI scan of the brain, both before and after contrast, helps visualize different brain structures. Initially, images are taken without a contrast agent. Then, a safe dye is injected which helps highlight certain areas, providing clearer, more detailed images.
24 services24 patients
Ct scan of upper spine without contrast 72125
A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.
23 services23 patients
Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level 64483
This procedure involves injecting a mix of numbing and anti-inflammatory medication into a specific nerve root in the lower back. It helps manage pain and reduce inflammation. The process is guided by imaging technology for precision.
21 services20 patients
Ct scan of blood vessels of head with contrast 70496
A CT scan of the head's blood vessels with contrast is a diagnostic procedure. A special dye (contrast) is injected into your body to make the blood vessels visible on the scan. This helps identify issues like blockages or abnormalities in your head's blood vessels.
16 services15 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

74.46/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability76
Improvement Activities40
Cost46.68

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CATHERINE RAMSDELL NNP
Nurse Practitioner (Neonatal)
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-1000
DR. CLAUDIO ANDRES BRAVO CARRILLO M.D.
Internal Medicine (Advanced Heart Failure and Transplant Cardiology)
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 502-4243
MAURICIO JALIFE BUCAY M.D
Hospitalist
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 750-4994
EMMA B SHAK M.D.
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1528
DR. ADRIANA A.T. MARTIN M.D., PH.D.
Internal Medicine
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 514-7288
WILLIAM JAMES DEARDORFF
Internal Medicine (Geriatric Medicine)
505 PARNASSUS AVE, 15 LONG
SAN FRANCISCO, CA 94143
San Francisco County (415) 406-1417
KEERTHANA REDDY BANALA
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 514-7288
ROBERT CHRISTIAN WENZ
Nurse Anesthetist, Certified Registered
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-8054

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Dillon's NPI number?

The NPI number for William Dillon is 1386609337. It was assigned to this individual provider in the NPPES registry on April 20, 2006.

Where is William Dillon located?

William Dillon practices at 505 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 353-1668.

What is William Dillon's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Neuroradiology, with taxonomy code 2085N0700X.

Is William Dillon enrolled in Medicare?

Yes. William Dillon is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for William Dillon was last updated on June 6, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.