Tammy Cass, NP-BC
NPI 1902459159 · Family Nurse Practitioner · Warren, MI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Cass, NP-BC is a Family Nurse Practitioner provider in Warren, MI (NPI 1902459159).
Provider details
- NPI number
- 1902459159
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 4704211290 (MI)
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 tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 65 | 23 |
| Chlorhexidine Gluconate | 46 | 24 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 33 | 12 |
| Gabapentin | 31 | — |
| Lidocaine Hclbrand: Lidocaine Hcl Viscous | 25 | 16 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 19 | 13 |
| Clindamycin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,113 across 31 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
Registry dates
- Enumerated
- 2019-07-17
- Last updated
- 2019-07-24
Frequently asked questions
- What is Tammy Cass's NPI number?
- Tammy Cass's National Provider Identifier (NPI) is 1902459159, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Cass's specialty?
- Tammy Cass is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tammy Cass located?
- Tammy Cass's practice location on file with NPPES is 11900 E 12 Mile Rd, Warren, MI 48093-3400.
- What is Tammy Cass's phone number?
- The practice phone number listed in the NPPES registry for Tammy Cass is (586) 582-7100.
- Does Tammy Cass accept Medicare?
- Tammy Cass is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Cass's NPI active?
- Yes — Tammy Cass's NPI (1902459159) is active in the NPPES registry as of the last update on 2019-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.