Peter Craig Cassini, M.D.
Neurology Physician · Palo Alto, CA
Peter Craig Cassini, M.D. is a neurology physician with a practice address in Palo Alto, California, and NPI 1326088501, issued on Jun 7, 2006. Check the license (California G80202, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Peter Craig Cassini
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- G80202 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1101 Welch RD, Palo Alto, CA 94304
- Phone
- (650) 324-4300
- Enumerated
- Jun 7, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (650) 329-0788
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Peter Craig Cassini in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G80202Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average neurology physician in 2024
459 Medicare Part D claims for 50 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Lorazepam40 claims
- Amitriptyline Hcl36 claims
- Celecoxib28 claims
- Escitalopram Oxalate26 claims
- Zolpidem Tartrate24 claims
- Gabapentin21 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.
Peter Craig Cassini among 2,339 neurology physician records in California
Peter Craig Cassini, 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 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2026 · 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 Palo Alto → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Bruce Adornato, M.D.Palo Alto, CA 943041366514341
- Mohammed Alhaidar, MBBSPalo Alto, CA 943041811420276
- Peter Heublein, M.D.Palo Alto, CA 943041619088085
- Shannon Kilgore, M.D.Palo Alto, CA 943041366485849
- Leland Lim, MD, PHDPalo Alto, CA 943041932215761
- Kendra PetersonPalo Alto, CA 943041801980545
- Thomas Rando, M.D., PH.DPalo Alto, CA 943041255448171
- Lawrence Recht, MDPalo Alto, CA 943041417007469
Common questions
What is Peter Craig Cassini, M.D.'s NPI number?
Peter Craig Cassini, M.D.'s National Provider Identifier (NPI) is 1326088501, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter Craig Cassini, M.D. located?
The NPPES record lists a practice address at 1101 Welch RD, Palo Alto, CA, 94304. Phone: (650) 324-4300. Providers update this record themselves, so call before visiting.
How can I verify Peter Craig Cassini, M.D.'s license?
NPPES lists California license number G80202, 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 Peter Craig Cassini, M.D. prescribe under Medicare Part D?
In 2024, Peter Craig Cassini, M.D. had 459 Medicare Part D claims for 50 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
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.