Nolan K Bayen, MD

1 location · Providence Medical Foundation · 1,461 clinicians in this group

Hospitals listed: Petaluma Valley Hospital · Providence Santa Rosa Memorial Hospital. That is not proof they admit you there this week.

3 plans · 1 carrier

Licence A138558 · Current

Licensed to practise in California · since 2015 · expires 2029-01-31 · Loma Linda University School of Medicine.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

What this clinician told their state board, medical school and everything before it. Only some states publish this, so nothing here means the state does not say, not that there was no training or certification.

Specialty certification

• American Board of Family Medicine - Family Medicine

2 hospitals

These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.

• Petaluma Valley HospitalPetaluma, CAAcute Care Hospital · Voluntary non-profit - Other · No emergency department · Birthing-friendlyPart of Providence, which runs 54 hospitals in 7 statesPatients rate it 3 of 5 · 70% would definitely recommend it
  Overall rating: 4 of 5 starsNo measure marked better or worse than the national rate
• Providence Santa Rosa Memorial HospitalSanta Rosa, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of Providence, which runs 54 hospitals in 7 statesPatients rate it 3 of 5 · 69% would definitely recommend it
  Overall rating: 3 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.375, Oct 2024 – Sep 2025

$36,211

Medicare paid this office $36,211 for 271 people.

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

Who their Medicare patients are

271 Original Medicare patients in 2024. Average age 78 · Under 65 7% · 85 and older 29% · Women 52% · Also on Medicaid 44% · Health risk score 2.33. Sicker patients than 9 in 10 peers; the typical family practice clinician is at 1.13.

Conditions among them: High blood pressure 75% · Heart failure 49% · Coronary heart disease 46% · Chronic kidney disease 45% · Atrial fibrillation 44% · Depression 40% · Diabetes 39% · COPD 36% · Dementia 32% · Cancer 22% · Stroke 21%.

The office billed $145,786, Medicare allowed $46,206 and paid $36,211; for 314 services of 16 kinds.

Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.

Year by year

Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.

$6,638 in 2024

Medicaid paid $6,638 for 88 billed services this clinician did in 2024, up to 21 people in a month for one service.

Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.

This is pharmacy cost, not the office bill, and not what patients paid.

Opioids were 0% of their 19 Part D prescriptions in 2022. Too few prescriptions to judge: with under about 50 a year, a handful of patients can swing this share.

Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

Year by year

Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

NPI

1639541014

Licence

CA A138558California A138558: Current · expires 2029-01-31

Trained

Loma Linda University School of Medicine, 2014 · 12 years ago

Group

Providence Medical Foundation

Gender

Male