Ariele Greenfield, M.D.
Neurology Physician · Mountain View, CA
Ariele Greenfield, M.D. is a neurology physician with a practice address in Mountain View, California, and NPI 1114214566, issued on Jul 6, 2011. Check the license (California A122857, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ariele Greenfield
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- A122857 CA
Self-reported in NPPES; status is on the state search - Practice location
- 701 E EL Camino Real, Mountain View, CA 94040
- Phone
- (650) 934-7300
- Enumerated
- Jul 6, 2011
- Record last updated
- Oct 23, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150728006008); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 2011
- 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 701 E EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ariele Greenfield in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A122857Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average neurology physician in 2024
840 Medicare Part D claims for 161 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Carbidopa-Levodopa111 claims
- Donepezil Hcl69 claims
- Gabapentin63 claims
- Memantine Hcl57 claims
- Dalfampridine Er34 claims
- Levetiracetam34 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.
Industry payments in 2024: $1,056.78
4 payments; by number, the most common kind was food and beverage; the largest payer was TG Therapeutics, 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
- Sutter Bay Medical FoundationMountain View, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ariele Greenfield among 2,339 neurology physician records in California
Ariele Greenfield, 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 2011, is newer than 64% of them.
- NPI issued2011 · 64% of these records are older, 34% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2011 · median 2006 among the 1,628 with a school on file
- Record last updated2019 · 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 Mountain View → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- John Barnes, MDMountain View, CA 940401013097401
- David Chen, MDMountain View, CA 940401730155441
- Leland Greenwald, MDMountain View, CA 940401881700029
- Carson Lawall, MDMountain View, CA 940401396871521
- Amy Lee, M.D.Mountain View, CA 940401629108717
- Chien-Ye Liu, MDMountain View, CA 940401376659003
- Hemalatha Narra, M.D.Mountain View, CA 940401285690701
- Angeline Ngo, MDMountain View, CA 940401215565007
Common questions
What is Ariele Greenfield, M.D.'s NPI number?
Ariele Greenfield, M.D.'s National Provider Identifier (NPI) is 1114214566, issued on Jul 6, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Ariele Greenfield, M.D. located?
The NPPES record lists a practice address at 701 E EL Camino Real, Mountain View, CA, 94040. Phone: (650) 934-7300. Providers update this record themselves, so call before visiting.
How can I verify Ariele Greenfield, M.D.'s license?
NPPES lists California license number A122857, 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 Ariele Greenfield, M.D. prescribe under Medicare Part D?
In 2024, Ariele Greenfield, M.D. had 840 Medicare Part D claims for 161 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.