Phillip Guillien
NPI 1265999809 · Certified Registered Nurse Anesthetist · Dubuque, IA
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Phillip Guillien is a Certified Registered Nurse Anesthetist provider in Dubuque, IA (NPI 1265999809).
Provider details
- NPI number
- 1265999809
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 123934 (IA)
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
7 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
149 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) |
|---|---|---|
| Anesthesia for Lens Surgery00142 | 65 | $116 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 31 | $57 |
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 20 | $326 |
| Injection of Anesthetic Agent And/Or Steroid Into Other Nerve Or Branch64450 | 20 | $20 |
| Injection of Anesthetic Agent And/Or Steroid Into Arm Nerve Bundle (brachial Plexus)64415 | 13 | $64 |
Typical Medicare-allowed amounts for these services range $20–$326 (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
- 2019-03-01
- Last updated
- 2023-12-01
- Certified
- 2023-12-01
Frequently asked questions
- What is Phillip Guillien's NPI number?
- Phillip Guillien's National Provider Identifier (NPI) is 1265999809, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Phillip Guillien's specialty?
- Phillip Guillien is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Phillip Guillien located?
- Phillip Guillien's practice location on file with NPPES is 350 N Grandview Ave, Dubuque, IA 52001-6388.
- What is Phillip Guillien's phone number?
- The practice phone number listed in the NPPES registry for Phillip Guillien is (507) 459-2358.
- Does Phillip Guillien accept Medicare?
- Phillip Guillien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Phillip Guillien's NPI active?
- Yes — Phillip Guillien's NPI (1265999809) is active in the NPPES registry as of the last update on 2023-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.