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DR. DIANA LYNN SYLVESTRE M.D.
NPI 1487668422
Internal Medicine in Oakland, CA

Active since July 27, 2006PECOS EnrolledAccepts Medicare Assignment
520 27TH ST, OAKLAND, CA 94612(510) 834-5442(510) 834-0916 Get Directions Write a Review

NPPES record last updated: September 13, 2013. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Diana Lynn Sylvestre M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DIANA LYNN SYLVESTRE M.D. (NPI 1487668422) is an individual internal medicine provider in Oakland, California, licensed in California (G81856) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of Harvard Medical School (1988).

NPPES Registry Identity

NPI1487668422
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. DIANA LYNN SYLVESTRECredential: M.D.
Location Address520 27TH STOakland, CA 94612-1706
Mailing Address520 27th StOakland, CA 94612-1706 · (510) 834-5442 · Fax (510) 834-0916
Phone(510) 834-5442
Fax(510) 834-0916
Sole ProprietorYes
Medical School CMSHarvard Medical SchoolGraduated 1988
Enumeration DateJuly 27, 2006
Last NPPES UpdateSeptember 13, 2013
✔ NPI 1487668422 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G81856
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedPsychiatry & Neurology · Addiction MedicineTaxonomy 2084A0401X · License G81856 (CA)
520 27TH ST, Oakland, CA 94612
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Other Identifiers 1

Medicare UPINE62967CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Diana Lynn Sylvestre M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5890728232
PECOS Enrollment IDI20050915000513
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
119 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94612 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ORGANIZATION TO ACHIEVE SOLUTIONS IN SUBSTANCE-ABUSE, INC.
Clinic/Center (Primary Care)
520 27TH ST
OAKLAND, CA 94612
Alameda County (510) 834-5442

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Diana Sylvestre's NPI number?

The NPI number for Diana Sylvestre is 1487668422. It was assigned to this individual provider in the NPPES registry on July 27, 2006.

Where is Diana Sylvestre located?

Diana Sylvestre practices at 520 27th St, Oakland, CA 94612. The listed phone number is (510) 834-5442.

What is Diana Sylvestre's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Diana Sylvestre enrolled in Medicare?

Yes. Diana Sylvestre is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Diana Sylvestre was last updated on September 13, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.