Robert Fielding, PA
NPI 1477152353 · Physician Assistant · Simi Valley, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Fielding, PA is a Physician Assistant provider in Simi Valley, CA (NPI 1477152353).
Provider details
- NPI number
- 1477152353
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
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 tenure25% of score
5 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
249 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 | 116 | $85 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 76 | $58 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 34 | $118 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 12 | $8 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 11 | $8 |
Typical Medicare-allowed amounts for these services range $8–$118 (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 · 72 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metformin Hcl | 175 | 62 |
| Atorvastatin Calcium | 164 | 60 |
| Amlodipine Besylate | 118 | 45 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 94 | 28 |
| Omeprazole | 79 | 31 |
| Semaglutidebrand: Ozempic | 75 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,362 across 69 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
- 2020-10-21
- Last updated
- 2020-12-08
- Certified
- 2020-12-07
Frequently asked questions
- What is Robert Fielding's NPI number?
- Robert Fielding's National Provider Identifier (NPI) is 1477152353, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Fielding's specialty?
- Robert Fielding is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Robert Fielding located?
- Robert Fielding's practice location on file with NPPES is 2840 E Los Angeles Ave, Simi Valley, CA 93065-3937.
- What is Robert Fielding's phone number?
- The practice phone number listed in the NPPES registry for Robert Fielding is (805) 526-8360.
- Does Robert Fielding accept Medicare?
- Robert Fielding is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Fielding's NPI active?
- Yes — Robert Fielding's NPI (1477152353) is active in the NPPES registry as of the last update on 2020-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.