NPPES file of Aug 9, 2026

Meredith Catherine Graham, NP

Family Nurse Practitioner · Lancaster, CA

Meredith Catherine Graham, NP is a family nurse practitioner with a practice address in Lancaster, California, and NPI 1558634337, issued on Feb 9, 2012. Check the license (California 21605, 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
1558634337
Name
Meredith Catherine Graham
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
21605 CA
Self-reported in NPPES; status is on the state search
Practice location
1600 W Avenue J, Lancaster, CA 93534
Phone
(661) 949-5130
Enumerated
Feb 9, 2012
Record last updated
Feb 9, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20120606000601); 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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8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →

Also registered at 1600 W Avenue J

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

  1. Sam Abid, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1295366656
  2. Hazem Aboaid, MDInternal Medicine Physician1689323552
  3. Beverly Kim AgniPsychiatric/Mental Health Registered Nurse1194542761
  4. Josephine Aideloje, NPPsychiatric/Mental Health Nurse Practitioner1790272243
  5. Imaobong AliyuAdult Psychiatric/Mental Health Registered Nurse1497343206
  6. Sam Allen, MDObstetrics & Gynecology Physician1982740841

Verify Meredith Catherine Graham 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 21605    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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52% fewer Medicare Part D claims than the average family nurse practitioner in 2024

621 Medicare Part D claims for 246 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 113 claims were for opioids.

  1. Meredith Graham621
  2. Specialty average1,305

Most prescribed

  1. Hydrocodone-Acetaminophen98 claims
  2. Baclofen45 claims
  3. Fluticasone Propionate38 claims
  4. Ondansetron Odt37 claims
  5. Cephalexin35 claims
  6. Dexamethasone35 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: $51.02

2 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Meredith Graham$51.02
  2. Specialty average$650.95

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

  1. Antelope Valley Emergency Medical Associates IncLancaster, CA

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

Meredith Catherine Graham among 16,966 family nurse practitioner records in California

Meredith Catherine Graham, NP is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 21% of them.

  • NPI issued2012 · 21% of these records are older, 76% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2011 · median 2019 among the 6,793 with a school on file
  • Record last updated2012 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

89 family nurse practitioner records list a practice address in Lancaster

They are 89 of the 4,273 NPPES records with a practice address in Lancaster, and 16,966 family nurse practitioner records in California.

All 16,966 in California → Every provider in Lancaster → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Sandra Callaghan, FNPLancaster, CA 935341780970517
  2. Jacob Carpenter, FNP-CLancaster, CA 935341295199263
  3. Sukhvir Dhinsa, FNP-BCLancaster, CA 935341255707493
  4. Richard Emanuel, FNPLancaster, CA 935341922399609
  5. Pascualita FloresLancaster, CA 935341386040145
  6. Dorothy Griego, FNPCLancaster, CA 935341992977326
  7. Carlos Guerrero, FNPLancaster, CA 935341699855080
  8. Gigi Hammang, MSN, RNC, FNPLancaster, CA 935341023216090

Common questions

What is Meredith Catherine Graham, NP's NPI number?

Meredith Catherine Graham, NP's National Provider Identifier (NPI) is 1558634337, issued on Feb 9, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Meredith Catherine Graham, NP located?

The NPPES record lists a practice address at 1600 W Avenue J, Lancaster, CA, 93534. Phone: (661) 949-5130. Providers update this record themselves, so call before visiting.

How can I verify Meredith Catherine Graham, NP's license?

NPPES lists California license number 21605, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Meredith Catherine Graham, NP prescribe under Medicare Part D?

In 2024, Meredith Catherine Graham, NP had 621 Medicare Part D claims for 246 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.