Cassandra Tamayo, DO
NPI 1326578089 · Family Medicine Physician · Grove City, OH
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassandra Tamayo, DO is a Family Medicine Physician provider in Grove City, OH (NPI 1326578089).
Provider details
- NPI number
- 1326578089
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 125071162 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
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
248 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 148 | $120 |
| Hemoglobin A1c Level83036 | 36 | $10 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 36 | $122 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 28 | $16 |
Typical Medicare-allowed amounts for these services range $10–$122 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 96 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 294 | 93 |
| Lisinopril | 174 | 59 |
| Omeprazole | 153 | 48 |
| Losartan Potassium | 138 | 39 |
| Metformin Hcl | 122 | 30 |
| Pantoprazole Sodium | 117 | 40 |
| Gabapentin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$461 across 24 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)
- 1325 Community Memorial DrLa Grange, IL 60525-2659Phone: (708) 245-8900Fax: (708) 245-5777
Registry dates
- Enumerated
- 2017-06-15
- Last updated
- 2020-07-27
- Certified
- 2020-07-27
Frequently asked questions
- What is Cassandra Tamayo's NPI number?
- Cassandra Tamayo's National Provider Identifier (NPI) is 1326578089, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassandra Tamayo's specialty?
- Cassandra Tamayo is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Cassandra Tamayo located?
- Cassandra Tamayo's practice location on file with NPPES is 3667 Marlane Dr, Grove City, OH 43123-8895.
- What is Cassandra Tamayo's phone number?
- The practice phone number listed in the NPPES registry for Cassandra Tamayo is (614) 277-9631.
- Does Cassandra Tamayo accept Medicare?
- Cassandra Tamayo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassandra Tamayo's NPI active?
- Yes — Cassandra Tamayo's NPI (1326578089) is active in the NPPES registry as of the last update on 2020-07-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.