Teresa Guastella, PA-C
NPI 1407205990 · Physician Assistant · Livonia, MI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Teresa Guastella, PA-C is a Physician Assistant provider in Livonia, MI (NPI 1407205990).
Provider details
- NPI number
- 1407205990
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- 5601007807 (MI)
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
10 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
53 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) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 53 | $42 |
Typical Medicare-allowed amounts for these services range $42–$42 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-06-06
- Last updated
- 2017-07-08
Frequently asked questions
- What is Teresa Guastella's NPI number?
- Teresa Guastella's National Provider Identifier (NPI) is 1407205990, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Teresa Guastella's specialty?
- Teresa Guastella is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Teresa Guastella located?
- Teresa Guastella's practice location on file with NPPES is 36475 5 Mile Rd, Livonia, MI 48154-1971.
- What is Teresa Guastella's phone number?
- The practice phone number listed in the NPPES registry for Teresa Guastella is (734) 655-4800.
- Does Teresa Guastella accept Medicare?
- Teresa Guastella is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Teresa Guastella's NPI active?
- Yes — Teresa Guastella's NPI (1407205990) is active in the NPPES registry as of the last update on 2017-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.