Dennis Siegler
Obstetrics & Gynecology · Palo Alto
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 25
- 5 carriers
- Office
- 1
Offices
1 location
Plans that list them
25 plans · 5 carriers
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dennis Siegler’s office at (650) 321-4121 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
25 of 25 plans
| Alignment Health BreathEasy (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Clarity (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Harmony (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes CalPlus (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes Care (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Heart & Diabetes Choice (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Honor+ Plan (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health My Choice CalCare (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Silicon (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health smartHMO (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health the ONE (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Astiva Health C-SNP WOW - NorCal (HMO C-SNP) | Astiva Health | Listed | Oct 29, 2026 |
| Astiva Health Premier Plan - NorCal (HMO) | Astiva Health | Listed | Oct 29, 2026 |
| Astiva Health Savings Plan - NorCal (HMO) | Astiva Health | Listed | Oct 29, 2026 |
| Central Health Classic Care Plan III (HMO) | Central Health Medicare Plan | Listed | Aug 15, 2026 |
| Central Health Dual Access Plan (HMO D-SNP) | Central Health Medicare Plan | Listed | Aug 15, 2026 |
| Central Health Embrace Care Plan (HMO C-SNP) | Central Health Medicare Plan | Listed, may be out of date | Sep 15, 2025 |
| Central Health Embrace Choice Plan (HMO C-SNP) | Central Health Medicare Plan | Listed | Aug 15, 2026 |
| Central Health Valor Care Plan (HMO) | Central Health Medicare Plan | Listed | Aug 15, 2026 |
| SCAN Balance (HMO C-SNP) | SCAN Health Plan | Listed | Oct 3, 2026 |
| SCAN Classic (HMO) | SCAN Health Plan | Listed | Oct 3, 2026 |
| SCAN MyChoice (HMO) | SCAN Health Plan | Listed | Oct 3, 2026 |
| SCAN Strive (HMO C-SNP) | SCAN Health Plan | Listed | Oct 3, 2026 |
| DualConnect (HMO D-SNP) | Santa Clara Family Health Plan | Listed | Sep 1, 2026 |
California Medical Board record
Licence G69589 · Current
Licensed to practise in California · since 1990 · expires 2028-04-30 · Hahnemann University School of Medicine.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
School, training and certification
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
Medicaid work
$85,937 in 2024
Medicaid paid $85,937 for 2,718 billed services this clinician did in 2024, up to 61 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.
| Clinic visit/encounter, all-inclusive | 190 | $83,990 |
| Short return visit (20+ min) | 495 | $1,590 |
| FETAL NON-STRESS TEST | 24 | $333 |
| Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections); 1 vaccine (single or combination vaccine/toxoid) | 56 | $23 |
| Subsequent prenatal care visit (Prenatal) [Excludes: patients who are seen for a condition unrelated to pregnancy or prenatal care (eg, an upper respiratory infection; patients seen for consultation only, not for continuing care)] | 215 | $0 |
| Pain severity quantified; no pain present (COA) (ONC) | 76 | $0 |
| Medication list documented in medical record (COA) | 431 | $0 |
| Most recent systolic blood pressure less than 130 mm Hg (DM) (HTN, CKD, CAD) | 548 | $0 |
| Most recent diastolic blood pressure less than 80 mm Hg (HTN, CKD, CAD) (DM) | 534 | $0 |
| Most recent diastolic blood pressure 80-89 mm Hg (HTN, CKD, CAD) (DM) | 69 | $0 |
| Short return visit | 24 | $0 |
| Return visit (30+ min) | 56 | $0 |
| 2024 | 2,718 | 12 | 61 | $85,937 |
| 2023 | 1,446 | 10 | 64 | $215,709 |
| 2022 | 1,319 | 10 | 63 | $206,068 |
| 2021 | 2,284 | 11 | 78 | $363,675 |
| 2020 | 1,564 | 7 | 75 | $274,294 |
| 2019 | 790 | 4 | 60 | $201,777 |
| 2018 | 1,134 | 6 | 67 | $315,368 |
See the largest Medicaid services in earlier years
2023
| Clinic visit/encounter, all-inclusive | 494 | $213,001 |
| Short return visit (20+ min) | 590 | $1,858 |
| Return visit (30+ min) | 88 | $427 |
| Influenza virus vaccine, quadrivalent (IIV4), split virus, preservative free, 0.5 mL dosage, for intramuscular use | 36 | $164 |
| FETAL NON-STRESS TEST | 12 | $123 |
| Short return visit | 53 | $103 |
| Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections); 1 vaccine (single or combination vaccine/toxoid) | 47 | $34 |
| Most recent hemoglobin A1c (HbA1c) level less than 7.0% (DM) | 16 | $0 |
| Most recent systolic blood pressure less than 130 mm Hg (DM) (HTN, CKD, CAD) | 52 | $0 |
| Most recent diastolic blood pressure less than 80 mm Hg (HTN, CKD, CAD) (DM) | 58 | $0 |
2022
| Clinic visit/encounter, all-inclusive | 468 | $198,701 |
| OBSTETRICAL CARE | 12 | $4,964 |
| Short return visit (20+ min) | 534 | $2,047 |
| Short return visit | 67 | $189 |
| Return visit (30+ min) | 20 | $92 |
| Influenza virus vaccine, quadrivalent (IIV4), split virus, preservative free, 0.5 mL dosage, for intramuscular use | 22 | $60 |
| Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections); 1 vaccine (single or combination vaccine/toxoid) | 30 | $15 |
| Most recent hemoglobin A1c (HbA1c) level less than 7.0% (DM) | 15 | $0 |
| Most recent systolic blood pressure less than 130 mm Hg (DM) (HTN, CKD, CAD) | 76 | $0 |
| Most recent diastolic blood pressure less than 80 mm Hg (HTN, CKD, CAD) (DM) | 75 | $0 |
2021
| Clinic visit/encounter, all-inclusive | 847 | $358,336 |
| OBSTETRICAL CARE | 12 | $3,053 |
| Short return visit (20+ min) | 633 | $1,240 |
| Return visit (30+ min) | 168 | $543 |
| Short return visit | 200 | $363 |
| Influenza virus vaccine, quadrivalent (IIV4), split virus, preservative free, 0.5 mL dosage, for intramuscular use | 63 | $126 |
| Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections); 1 vaccine (single or combination vaccine/toxoid) | 85 | $13 |
| Most recent hemoglobin A1c (HbA1c) level less than 7.0% (DM) | 60 | $0 |
| Most recent systolic blood pressure less than 130 mm Hg (DM) (HTN, CKD, CAD) | 106 | $0 |
| Most recent diastolic blood pressure less than 80 mm Hg (HTN, CKD, CAD) (DM) | 95 | $0 |
| Most recent diastolic blood pressure 80-89 mm Hg (HTN, CKD, CAD) (DM) | 15 | $0 |
2020
| Clinic visit/encounter, all-inclusive | 672 | $270,970 |
| Short return visit (20+ min) | 466 | $1,157 |
| Return visit (30+ min) | 153 | $936 |
| Payment for communication technology-based services for 5 minutes or more of a virtual (non-face-to-face) communication between an rural health clinic (rhc) or federally qualified health center (fqhc) practitioner and rhc or fqhc patient, or 5 minutes or more of remote evaluation of recorded video and/or images by an rhc or fqhc practitioner, occurring in lieu of an office visit; rhc or fqhc only | 53 | $682 |
| Influenza virus vaccine, quadrivalent (IIV4), split virus, preservative free, 0.5 mL dosage, for intramuscular use | 65 | $325 |
| Short return visit | 63 | $147 |
| Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections); 1 vaccine (single or combination vaccine/toxoid) | 92 | $77 |
2019
| Clinic visit/encounter, all-inclusive | 486 | $194,275 |
| OBSTETRICAL CARE | 16 | $6,232 |
| Short return visit (20+ min) | 242 | $1,067 |
| Return visit (30+ min) | 46 | $203 |
2018
| Clinic visit/encounter, all-inclusive | 784 | $312,573 |
| Short return visit (20+ min) | 263 | $1,804 |
| Service | 40 | $631 |
| FETAL NON-STRESS TEST | 12 | $204 |
| Influenza virus vaccine, quadrivalent (IIV4), split virus, preservative free, 0.5 mL dosage, for intramuscular use | 18 | $127 |
| Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections); 1 vaccine (single or combination vaccine/toxoid) | 17 | $29 |
Drugs they prescribed that Part D paid
$3,925
Pharmacies billed $3,925 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 52) in 2024. At or below the middle of the specialty; the typical obstetrics & gynecology clinician is at 0%.
45 generic and fewer than 11 brand-name prescriptions · $3,925 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.
| Estradiol | 14 | $1,140 | $81 |
Year by year
| 2024 | 52 | 12 | 0% (0) | None | $3,925 |
| 2023 | 32 | 14 | 0% (0) | None | $3,993 |
| 2022 | 17 | None | 0% (0) | None | $2,165 |
| 2021 | 50 | 16 | 0% (0) | 24% | $6,069 |
| 2020 | 35 | 11 | 0% (0) | None | $3,873 |
| 2019 | 35 | 14 | None | None | $1,806 |
| 2018 | 22 | None | 0% (0) | 0% | $831 |
| 2017 | 15 | None | 0% (0) | None | $2,372 |
| 2016 | 47 | 18 | 0% (0) | 38% | $5,432 |
| 2015 | 62 | 18 | None | 44% | $5,524 |
| 2014 | 41 | None | 0% (0) | None | $2,142 |
| 2013 | 47 | None | 0% (0) | 30% | $5,256 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2021: 2 drugs
| Premarin | 12 | $4,558 | $380 |
| Oxybutynin Chloride | 12 | $221 | $18 |
2016: 1 drug
| Premarin | 16 | $4,060 | $254 |
2015: 1 drug
| Premarin | 17 | $4,691 | $276 |
2014: 1 drug
| Hydrochlorothiazide | 11 | $34 | $3 |
Money from drug and device companies
$18 in 2022
A payment is not proof that care is biased.
| Boston Scientific | General - Female Sui | $18 | 1 payment
|
See the published payment
| Boston Scientific | Meals · 2022-07-14 | General - Female Sui | $18 |
Checkups this office reported
Medicare did not publish checkup rates for this clinician.
- Medicare’s overall office score
- 80.6 / 100
- Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.
Professional record
- NPI
- 1174687743
- Licence
- CA G69589California G69589: Current · expires 2028-04-30
More record details
- Sole proprietor
- No
- Taxonomy
- Federal specialty code 207V00000X (207V00000X)
- Mailing address
- Po Box 10000, Palo Alto, CA, 94303
- NPI first listed
- 2006-12-20
- NPI last updated
- 2007-07-08
This is when the NPI record was last certified, not a medical board exam.