William Rodman Shankle, MS, M.D.
Neurology Physician · Newport Beach, CA
William Rodman Shankle, MS, M.D. is a neurology physician with a practice address in Newport Beach, California, and NPI 1932246584, issued on Jan 31, 2007. Check the license (California G55639, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Rodman Shankle
- Credential
- MS, M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- G55639 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3900 W Coast Hwy Ste 310, Newport Beach, CA 92663
- Phone
- (949) 478-8858
- Enumerated
- Jan 31, 2007
- Record last updated
- Feb 22, 2023
- Fax
- (949) 242-2465
- Medicare enrollment
- Enrolled (PECOS I20091217000599); accepts Medicare assignment
- Medical or professional school
- Warren Alpert Medical School Of Brown University, 1983
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
Also registered at 3900 W Coast Hwy Ste 310
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Miki OhataAdult Health Nurse Practitioner1033760699
Verify William Rodman Shankle in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G55639Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average neurology physician in 2024
3,768 Medicare Part D claims for 404 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Memantine Hcl Er1,142 claims
- Rivastigmine736 claims
- Dipyridamole208 claims
- Desvenlafaxine Succinate Er163 claims
- Galantamine Er114 claims
- Ropinirole Hcl83 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $73.45
3 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- William R Shankle MD IncNewport Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Rodman Shankle among 2,339 neurology physician records in California
William Rodman Shankle, MS, M.D. is one of 2,339 neurology physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 48% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1983 · median 2006 among the 1,628 with a school on file
- Record last updated2023 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in California
There are 2,339 neurology physician records in California.
All 2,339 in California → Every provider in Newport Beach → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Daniel Bandari, M.D.Newport Beach, CA 926631467482216
- David Brown, M.D.Newport Beach, CA 926631992800452
- Janet Chance, M.D.Newport Beach, CA 926631518053289
- Teryn Clarke, M.D.Newport Beach, CA 926631174543169
- David Gehret, M.D.Newport Beach, CA 926631497774947
- Neal Hermanowicz, MDNewport Beach, CA 926631023198181
- Yasir Jassam, MBCHB MRCP(UK)Newport Beach, CA 926631508154428
- Andrew Ly, MDNewport Beach, CA 926631801093554
Common questions
What is William Rodman Shankle, MS, M.D.'s NPI number?
William Rodman Shankle, MS, M.D.'s National Provider Identifier (NPI) is 1932246584, issued on Jan 31, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Rodman Shankle, MS, M.D. located?
The NPPES record lists a practice address at 3900 W Coast Hwy Ste 310, Newport Beach, CA, 92663. Phone: (949) 478-8858. Providers update this record themselves, so call before visiting.
How can I verify William Rodman Shankle, MS, M.D.'s license?
NPPES lists California license number G55639, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Rodman Shankle, MS, M.D. prescribe under Medicare Part D?
In 2024, William Rodman Shankle, MS, M.D. had 3,768 Medicare Part D claims for 404 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is William Rodman Shankle, MS, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.