Tammy Ristau, CRNP
NPI 1730144122 · Nurse Practitioner · Sheffield, PA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Ristau, CRNP is a Nurse Practitioner provider in Sheffield, PA (NPI 1730144122).
Provider details
- NPI number
- 1730144122
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Female
- Sole proprietor
- No
- License
- SP008551 (PA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
85 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 85 | $78 |
Typical Medicare-allowed amounts for these services range $78–$78 (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 · 154 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 311 | 65 |
| Levothyroxine Sodium | 305 | 53 |
| Metoprolol Succinate | 257 | 45 |
| Losartan Potassium | 251 | 51 |
| Pantoprazole Sodium | 247 | 51 |
| Lisinopril | 246 | 53 |
| Furosemide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-19
- Last updated
- 2021-12-03
- Certified
- 2021-11-24
Frequently asked questions
- What is Tammy Ristau's NPI number?
- Tammy Ristau's National Provider Identifier (NPI) is 1730144122, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Ristau's specialty?
- Tammy Ristau is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tammy Ristau located?
- Tammy Ristau's practice location on file with NPPES is 511 South Main Street, Sheffield, PA 16347-2111.
- What is Tammy Ristau's phone number?
- The practice phone number listed in the NPPES registry for Tammy Ristau is (814) 584-1130.
- Does Tammy Ristau accept Medicare?
- Tammy Ristau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Ristau's NPI active?
- Yes — Tammy Ristau's NPI (1730144122) is active in the NPPES registry as of the last update on 2021-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.