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Allergists who accept Medicare in San Mateo, CA
CMS lists 14 clinicians in this specialty with a practice address in San Mateo. Accept Medicare assignment (the Medicare-approved amount as full payment): 14. Offer telehealth: 8.
Typical amounts Medicare approves in ZIP 94401 (2024 Medicare rates, the latest CMS has published): a new-patient visit $154, of which you pay about $38; a follow-up visit $85, of which you pay about $21 — the 20% coinsurance after the yearly Part B deductible. Clinicians who don't accept assignment can charge up to 15% more; with a Medicare Advantage plan, your plan's copay applies instead.
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Order: clinicians who accept assignment first, then by MIPS score (highest first), then by last name.
Andrew C. Engler, MD
✓ Accepts Medicare assignmentMIPS score (2024): 87.4/100✓ TelehealthGraduated 1982 · Stanford University School of MedicineMaleDrug and device company payments (2025): $72Shilpi Anand, MD
✓ Accepts Medicare assignmentMIPS score (2024): 86/100✓ TelehealthGraduated 2000 · Albany Medical College of Union UniversityFemaleDrug and device company payments (2025): $548Robert C. Bocian, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1987 · University of Illinois College of Med (chi/peor/rock/chm-Urb)MaleDrug and device company payments (2025): $1,727Erika D. Cherk, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2020FemaleDrug and device company payments (2025): $1,675Madeleine B. Chollet, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2015FemaleBhushan C. Gupta, MD
✓ Accepts Medicare assignmentGraduated 1971MaleDrug and device company payments (2025): $29Alan M. Heller, MD
✓ Accepts Medicare assignmentGraduated 1972MaleDrug and device company payments (2025): $2,702Rajashri S. Iyengar, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2002 · Duke University School of MedicineFemaleDrug and device company payments (2025): $2,361Dean G. Kardassakis, MD
✓ Accepts Medicare assignmentGraduated 1985 · University of Nevada School of MedicineMaleDrug and device company payments (2025): $35Chyh Woei Lee, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 1999 · Northwestern University Feinberg Medical SchoolMaleDrug and device company payments (2025): $846Steven B. Machtinger, MD
✓ Accepts Medicare assignmentGraduated 1977 · University of Pittsburgh School of MedicineMaleDrug and device company payments (2025): $535Chad K. Oh, MD
✓ Accepts Medicare assignmentGraduated 1983MaleDrug and device company payments (2025): $51Dai Park, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2006 · University of Texas Southwestern Medical School at DallasFemaleDrug and device company payments (2025): $283Nisha Patel, MD
✓ Accepts Medicare assignmentGraduated 2007FemaleDrug and device company payments (2025): $275
Before you book
This list comes from Medicare's enrollment records, not from reviews. Call the office to confirm the clinician is taking new Medicare patients. With Original Medicare, a clinician who accepts assignment can only charge you the Medicare deductible and coinsurance; one who doesn't may charge up to 15% more than the Medicare-approved amount. If you have a Medicare Advantage plan, check that the clinician is in the plan's network.
The MIPS final score (0–100) comes from Medicare's Merit-based Incentive Payment System for 2024. It combines quality measures, cost, improvement activities and use of certified health records, and it sets a payment adjustment. Clinicians who report as a group share the group's score. It is not a patient rating, and many clinicians have no published score.
Payments from drug and medical device companies come from CMS Open Payments (2025 general payments: meals, travel, consulting and speaking fees, gifts and similar), summed for each clinician. Receiving payments is legal and common and does not mean a clinician did anything wrong.
Other specialists in San Mateo
- Primary care doctors158
- Geriatricians3
- Nurse practitioners105
- Cardiologists38
- Dermatologists15
- Orthopedic surgeons18
- Neurologists38
- Gastroenterologists7
- Ophthalmologists28
- Optometrists35
- Podiatrists13
- Urologists9
- Pulmonologists5
- Nephrologists8
- Endocrinologists4
- Rheumatologists9
- ENT doctors9
- Oncologists7
- Psychiatrists75
- Psychologists16
- Therapists and counselors51
- Physical therapists52
- Audiologists7
- Chiropractors22
- Gynecologists19
- General surgeons13
- Vascular surgeons7
- Physiatrists8
- Dietitians3
- Neurosurgeons3
- Infectious disease doctors5
Other care in San Mateo
Hospitals · Nursing homes · Dialysis centers · Home health agencies · Hospices
Nearby cities
Enrollment, addresses and scores are as reported to CMS and can change. This is not a list of in-network providers for any Medicare Advantage plan, and it is not medical advice. Source: CMS Provider Data Catalog — Doctors and Clinicians National Downloadable File, Clinician MIPS Performance 2024 and Facility Affiliation Data (released Oct 2, 2026).