NPPES file of Aug 9, 2026

Cassandra Tom, NP

Family Nurse Practitioner · Costa Mesa, CA

Cassandra Tom, NP is a family nurse practitioner with a practice address in Costa Mesa, California, and NPI 1609325430, issued on Sep 21, 2016. Check the license (California 95004905, 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
1609325430
Name
Cassandra Tom
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
95004905 CA
813037 CA
Self-reported in NPPES; status is on the state search
Practice location
660 Baker St Ste A102, Costa Mesa, CA 92626
Phone
(714) 668-2505
Enumerated
Sep 21, 2016
Record last updated
Feb 26, 2026
Fax
(714) 668-2515
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 660 Baker St Ste A102

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

  1. Sara Chau, M.D.Family Medicine Physician1619194107
  2. Marenna Cowan, FNP-CFamily Nurse Practitioner1063078806
  3. Christina Demarinis, NPFamily Nurse Practitioner1861094815
  4. Rebecca Orozco, FNP-CFamily Nurse Practitioner1801612973
  5. Jessica Santos, PAPhysician Assistant1043042096
  6. Sierra Wilson, DNPFamily Nurse Practitioner1386353746

Verify Cassandra Tom 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 95004905
    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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71% fewer Medicare Part D claims than the average family nurse practitioner in 2024

378 Medicare Part D claims for 259 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Cassandra Tom378
  2. Specialty average1,305

Most prescribed

  1. Nitrofurantoin Mono-Macro48 claims
  2. Doxycycline Hyclate41 claims
  3. Methylprednisolone32 claims
  4. Prednisone30 claims
  5. Diclofenac Sodium27 claims
  6. Cephalexin24 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: $236.77

6 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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. Cassandra Tom$236.77
  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.

Cassandra Tom among 16,966 family nurse practitioner records in California

Cassandra Tom, 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 2016, is newer than 35% of them.

  • NPI issued2016 · 35% of these records are older, 60% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 40% of these records are
  • Record last updated2026 · 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).

71 family nurse practitioner records list a practice address in Costa Mesa

They are 71 of the 4,286 NPPES records with a practice address in Costa Mesa, and 16,966 family nurse practitioner records in California.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Andrea Beyaoju, NURSE PRACTITIONERCosta Mesa, CA 926261720520182
  2. Susan FlamingCosta Mesa, CA 926261780093237
  3. Arnold FrancoCosta Mesa, CA 926261518417633
  4. Suzanne Larkin, FNP-CCosta Mesa, CA 926261053358044
  5. Kendra Latty, FNP-CCosta Mesa, CA 926261659763589
  6. Shelly Lummus, FNPCosta Mesa, CA 926261649474545
  7. Jamila Ponder, F.N.P.-CCosta Mesa, CA 926261124215165
  8. Charlotte Russell, RNPCosta Mesa, CA 926261780636555

Common questions

What is Cassandra Tom, NP's NPI number?

Cassandra Tom, NP's National Provider Identifier (NPI) is 1609325430, issued on Sep 21, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Cassandra Tom, NP located?

The NPPES record lists a practice address at 660 Baker St Ste A102, Costa Mesa, CA, 92626. Phone: (714) 668-2505. Providers update this record themselves, so call before visiting.

How can I verify Cassandra Tom, NP's license?

NPPES lists California license number 95004905, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Cassandra Tom, NP prescribe under Medicare Part D?

In 2024, Cassandra Tom, NP had 378 Medicare Part D claims for 259 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.

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.