Cassandra Tom, NP
NPI 1609325430 · Family Nurse Practitioner · Costa Mesa, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassandra Tom, NP is a Family Nurse Practitioner provider in Costa Mesa, CA (NPI 1609325430).
Provider details
- NPI number
- 1609325430
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 95004905 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
158 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 57 | $81 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 54 | $113 |
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 20 | $67 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 14 | $53 |
| X-Ray of Chest, 2 Views71046 | 13 | $32 |
Typical Medicare-allowed amounts for these services range $32–$113 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 48 | 46 |
| Doxycycline Hyclate | 41 | 40 |
| Methylprednisolone | 32 | 31 |
| Prednisone | 30 | 30 |
| Diclofenac Sodium | 27 | 27 |
| Cephalexin | 24 | 24 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 22 | 22 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$237 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 4950 Barranca Pkwy Ste 104Irvine, CA 92604-8644Phone: (949) 857-1248Fax: (949) 559-1165
Registry dates
- Enumerated
- 2016-09-21
- Last updated
- 2026-02-26
- Certified
- 2026-02-26
Frequently asked questions
- What is Cassandra Tom's NPI number?
- Cassandra Tom's National Provider Identifier (NPI) is 1609325430, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassandra Tom's specialty?
- Cassandra Tom is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cassandra Tom located?
- Cassandra Tom's practice location on file with NPPES is 660 Baker St Ste A102, Costa Mesa, CA 92626-4407.
- What is Cassandra Tom's phone number?
- The practice phone number listed in the NPPES registry for Cassandra Tom is (714) 668-2505.
- Does Cassandra Tom accept Medicare?
- Cassandra Tom is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassandra Tom's NPI active?
- Yes — Cassandra Tom's NPI (1609325430) is active in the NPPES registry as of the last update on 2026-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.