Siobhan L Calhoun, MD

2 locations · Washington Township Medical Foundation · 125 clinicians in this group

Hospitals listed: Washington Hospital. That is not proof they admit you there this week.

7 plans · 2 carriers

Licence A62859 · Current

Licensed to practise in California · since 1997 · expires 2027-04-30 · Eastern Virginia Medical School.

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 Obstetrics and Gynecology - Obstetrics and Gynecology

1 hospital

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

• Washington HospitalFremont, CAAcute Care Hospital · Government - Hospital District or Authority · Has an emergency department · Birthing-friendlyPart of Washington Hospital Healthcare SystemPatients rate it 3 of 5 · 71% would definitely recommend it
  Overall rating: 2 of 5 starsBetter than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.188, Oct 2024 – Sep 2025Better than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.164, Oct 2024 – Sep 2025

$6,179

Medicare paid this office $6,179 for 62 people.

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

Procedures Medicare counted

Procedures year by year

Times billed to Original Medicare each year. A blank year means fewer than 11 people had it, or none: Medicare does not publish smaller counts. Medicare Advantage patients are not included.

Who their Medicare patients are

62 Original Medicare patients in 2024. Average age 72 · Women 100% · Health risk score 1.02. Above the middle of the specialty; the typical obstetrics & gynecology clinician is at 0.88.

Conditions among them: High blood pressure 74% · Diabetes 35% · Chronic kidney disease 27% · Coronary heart disease 21%.

The office billed $19,641, Medicare allowed $8,049 and paid $6,179; for 148 services of 15 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.

$10,881

Pharmacies billed $10,881 in 2024.

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

Opioids were 0% of their Part D prescriptions (0 of 115) in 2024. At or below the middle of the specialty; the typical obstetrics & gynecology clinician is at 0%.

90 generic and 25 brand-name prescriptions · $10,881 in drug cost.

Part D prescriptions only. The opioid rate is opioid prescriptions as a share of all this clinician's Part D prescriptions; surgeons and pain specialists run higher than others, so it is shown against the same specialty.

Year by year

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

$51 in 2025

Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.

A payment is not proof that care is biased.

Medicare did not publish checkup rates for this clinician.

NPI

1396726295

Licence

CA A62859California A62859: Current · expires 2027-04-30

Trained

Eastern Virginia Medical School, 1995 · 31 years ago

Group

Washington Township Medical Foundation

Gender

Female