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Profile last updated: March 2026How we source this data
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Provider Profile

Diana Sylvestre, M.D.

Internal Medicine Physician

NPI: 1487668422

4.8

127 reviews

19

Years Exp.

Oakland

CA

Internal Medicine

Specialty

About

With a patient rating of 4.8 out of 5 from 127 reviews, Dr. Sylvestre is recognized for her thoroughness and ability to address patient concerns effectively. Patients consistently express confidence in her expertise and treatment plans, while the friendly staff at Oasis Clinic contributes to a positive experience. She has been practicing internal medicine for several years, with typical office visits costing between $80 and $250.

Practicing Since

Jul 2006

Gender

Female

Experience

19 years

CA Medical License

#G81856

Practice Type

Solo Practice

NPI Number

1487668422

Additional Specialties

Psychiatry & Neurology, Addiction Medicine
Avg. Self-Pay Rate

$80

Low

$85

Median

$250

High

A typical office visit with a internal medicine physician in CA costs between $80 and $250, with a median of $85. These figures are based on negotiated office visit rates (CPT 99213–99215) disclosed under the Transparency in Coverage Act.

Actual office visit costs for Dr. Diana Sylvestre, MD may vary depending on visit complexity, your insurance plan, and coverage details. Contact the provider's office for exact pricing.

Cost data sourced from insurer Transparency in Coverage Act filings. Costs shown are negotiated rates and may not reflect your actual out-of-pocket cost. Learn about our data

Local Market

Oakland Low

$80

Oakland Typical

$85

Oakland High

$251

In Oakland, a typical internal medicine physician visit costs $85, ranging from $80 to $251. This is 0% above the California state median of $85. Based on 37 providers with published pricing data.

Across California, a internal medicine physician visit ranges from $80 to $250 with a median of $85. This is 7% below the national median of $91. Based on 2,792 providers with published pricing data.

There are 73 internal medicine physicians in Oakland and 5,319 across California on our platform.

Individual negotiated rates for this provider are not yet available.

See full internal medicine physician cost breakdown in California
Patient Reviews

4.8

127 reviews · Healthgrades

Overall, patient sentiment towards Dr. Diana Sylvestre, MD, is predominantly positive. Many patients appreciate her thoroughness and the quality of care they receive, noting her ability to listen attentively and address their concerns effectively. The reviews highlight her expertise in internal medicine, with patients feeling confident in her diagnoses and treatment plans. Additionally, the staff at Oasis Clinic is often praised for being friendly and accommodating, contributing to a welcoming atmosphere. However, some criticisms arise regarding wait times and appointment scheduling. A few patients have reported longer-than-expected waits for both appointments and in the office, which can be a source of frustration. Additionally, there are mentions of difficulties in reaching the clinic for scheduling or follow-up, indicating potential areas for improvement in administrative efficiency. Notable specifics mentioned by patients include Dr. Sylvestre's compassionate bedside manner and her commitment to patient education, which many find reassuring. Overall, those considering an appointment with Dr. Sylvestre may find her to be a knowledgeable and caring physician, but should be prepared for possible delays in the clinic.

Location

Address

520 27TH ST

Oakland, CA 94612

Phone

5108345442
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Momentary Lab sources provider data from the CMS NPI Registry and cost data from federal Transparency in Coverage files. Reviews aggregated from Healthgrades, Vitals, WebMD, and other public sources. Learn how we verify and update healthcare information.

This page is for informational purposes only and does not constitute medical advice. Cost estimates are based on publicly available negotiated rate data and may not reflect your actual out-of-pocket cost. Always consult with your healthcare provider and insurance company for accurate cost information and medical decisions.