NPPES file of Aug 9, 2026

Mary Margaret Cochran Abraham, N.P.

Gerontology Nurse Practitioner · Yountville, CA

Mary Margaret Cochran Abraham, N.P. is a gerontology nurse practitioner with a practice address in Yountville, California, and NPI 1841505633, issued on Aug 17, 2010. Check the license (California 19976, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841505633
Name
Mary Margaret Cochran Abraham
Credential
N.P.
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License numbers
19976 CA
706676 CA
Self-reported in NPPES; status is on the state search
Practice location
220 California Dr, Yountville, CA 94599
Phone
(707) 944-4716
Enumerated
Aug 17, 2010
Record last updated
Dec 30, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(707) 944-5052
Medicare enrollment
Enrolled (PECOS I20100927001270); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 220 California Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Robert Aitchison, PH.D.Psychologist1700850047
  2. Robert Albanese, MDPsychiatry Physician1114035169
  3. Lisa Allen, PH.D.Psychologist1467428193
  4. William Arnett, DDSGeneral Practice Dentistry1265405112
  5. Monica Banchero-Hasson, M.D.Internal Medicine Physician1649244534
  6. Larry Bencich, PH.D.Clinical Psychologist1578700381

Verify Mary Margaret Cochran Abraham in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 19976
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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8% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024

1,253 Medicare Part D claims for 318 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.

  1. Mary Cochran Abraham1,253
  2. Specialty average1,369

Most prescribed

  1. Sertraline Hcl316 claims
  2. Gabapentin152 claims
  3. Donepezil Hcl138 claims
  4. Quetiapine Fumarate110 claims
  5. Memantine Hcl102 claims
  6. Trazodone Hcl66 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.

Bills Medicare through one group practice

  1. Permanente Medical Group IncOakland, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mary Margaret Cochran Abraham among 569 gerontology nurse practitioner records in California

Mary Margaret Cochran Abraham, N.P. is one of 569 gerontology nurse practitioner records with a practice address in California. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 24% of them.

  • NPI issued2010 · 24% of these records are older, 73% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated2010 · median 2018 among the 239 with a school on file
  • Record last updated2021 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1 gerontology nurse practitioner record lists a practice address in Yountville

They are 1 of the 86 NPPES records with a practice address in Yountville, and 569 gerontology nurse practitioner records in California.

The 8 gerontology nurse practitioner records with the nearest ZIP codes

  1. Lisa Buffum, RN, MS, GNPWalnut Creek, CA 945981205145802
  2. Carol Evans, NPWalnut Creek, CA 945981699864207
  3. Belkiz Quintanilla MejiaOakland, CA 946011518668698
  4. Robin Bon, NPWalnut Creek, CA 945961104998103
  5. Mary Conklin, NPWalnut Creek, CA 945961366526840
  6. Sunayna Kumar, NPWalnut Creek, CA 945951619342086
  7. Stephanie De Leon, A-GNP-COakland, CA 946061396350716
  8. Harpreet Bal, AGACNP-BCOakland, CA 946081760035976

Common questions

What is Mary Margaret Cochran Abraham, N.P.'s NPI number?

Mary Margaret Cochran Abraham, N.P.'s National Provider Identifier (NPI) is 1841505633, issued on Aug 17, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Mary Margaret Cochran Abraham, N.P. located?

The NPPES record lists a practice address at 220 California Dr, Yountville, CA, 94599. Phone: (707) 944-4716. Providers update this record themselves, so call before visiting.

How can I verify Mary Margaret Cochran Abraham, N.P.'s license?

NPPES lists California license number 19976, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Mary Margaret Cochran Abraham, N.P. prescribe under Medicare Part D?

In 2024, Mary Margaret Cochran Abraham, N.P. had 1,253 Medicare Part D claims for 318 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. 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.