1. Home
  2. Directory
  3. California
  4. San Ramon
  5. Internal Medicine
  6. NPI Profile

DR. YSHAY SHLESINGER M.D.
NPI 1881799922
Internal Medicine in San Ramon, CA

Active since September 13, 2006PECOS EnrolledAccepts Medicare AssignmentCLIA 05D2305916 · Waiver
111 DEERWOOD RD, SUITE 180, SAN RAMON, CA 94583(925) 552-5284 Get Directions Write a Review

NPPES record last updated: September 2, 2016. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Dr. Yshay Shlesinger M.d. NPPES

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

DR. YSHAY SHLESINGER M.D. (NPI 1881799922) is an individual internal medicine provider in San Ramon, California, licensed in California (A65724) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through June 6, 2028, and is a graduate of Other (1995).

NPPES Registry Identity

NPI1881799922
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. YSHAY SHLESINGERCredential: M.D.
Location Address111 DEERWOOD RD, SUITE 180San Ramon, CA 94583-2197
Mailing Address111 Deerwood Rd, Suite 180San Ramon, CA 94583-2197 · (925) 552-5280
Phone(925) 552-5284
Sole ProprietorYes
Medical School CMSOtherGraduated 1995
Enumeration DateSeptember 13, 2006
Last NPPES UpdateSeptember 2, 2016
✔ NPI 1881799922 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 · A65724
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 ListedInternal Medicine · Endocrinology, Diabetes & MetabolismTaxonomy 207RE0101X · License A 65724 (CA)
111 DEERWOOD RD, San Ramon, CA 94583
Open in Google Maps ↗

Other Identifiers 2

OtherA65724CA · Medical License
Medicare PIN00A657240CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Yshay Shlesinger 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 ID7214029693
PECOS Enrollment IDI20070815000884
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.

Medicare Billing Reassignment

Medicare enrollment records show Yshay Shlesinger reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Yshay Shlesinger, M.D., A Professional Corporation
0.1 mi
Internal Medicine
111 DEERWOOD RD, SUITE 180
San Ramon, CA 94583
  • Reassigned Medicare billing, California enrollment
NPI 1770763419 (925) 552-5284

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D2305916

Yshay Shlesinger,md Apc Dba Norcal Endocrinology & Internal Medicine · San Ramon, CA
Active · expires Jun 6, 2028
CLIA Number05D2305916
Laboratory TypePhysician Office
Certificate Effective DateJune 7, 2026
Certificate Expiration DateJune 6, 2028
Laboratory DirectorYshay Shlesinger
Laboratory Phone(925) 552-5280
Laboratory LocationYshay Shlesinger,md Apc Dba Norcal Endocrinology & Internal Medicine111 Deerwood Rs Suite 180, San Ramon, CA 94583
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 5

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.
602 services296 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
144 services105 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
71 services71 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
16 services15 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94583 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Breast Cancer Screening
Percentage of women 50-74 years of age who had a mammogram to screen for breast cancer
1%384 patients1/55-star benchmark: 92%
Cervical Cancer Screening
Percentage of women 21-64 years of age who were screened for cervical cancer using either of the following criteria: - Women age 21-64 who had cervical cytology performed every 3 years - Women age 30-64 who had cervical cytology/human papillomavirus (HPV)…
7%424 patients
Colorectal Cancer Screening
Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer
3%773 patients1/55-star benchmark: 85%
Diabetes: Medical Attention for Nephropathy
The percentage of patients 18-75 years of age with diabetes who had a nephropathy screening test or evidence of nephropathy during the measurement period
76%570 patients4/55-star benchmark: 99%
Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
54%2,284 patients1/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
98%3,401 patients4/55-star benchmark: 99%
Falls: Screening for Future Fall Risk
Percentage of patients 65 years of age and older who were screened for future fall risk during the measurement period
0%568 patients1/55-star benchmark: 99%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
77%1,911 patients1/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
46%1,337 patients2/55-star benchmark: 97%
Pneumococcal Vaccination Status for Older Adults
Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine
16%568 patients1/55-star benchmark: 90%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
26%1,374 patients2/55-star benchmark: 97%
Preventive Care and Screening: Influenza Immunization
Percentage of patients aged 6 months and older seen for a visit between October 1 and March 31 who received an influenza immunization OR who reported previous receipt of an influenza immunization
50%58 patients3/55-star benchmark: 88%
Preventive Care and Screening: Screening for Depression and Follow-Up Plan
Percentage of patients aged 12 years and older screened for depression on the date of the encounter using an age appropriate standardized depression screening tool AND if positive, a follow-up plan is documented on the date of the positive screen
0%1,332 patients1/55-star benchmark: 96%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user
Patients tobacco: 31% · 633 patients
32%633 patients
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
28%1,337 patients2/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
14%1,337 patients1/55-star benchmark: 89%
Use of High-Risk Medications in the Elderly
Percentage of patients 65 years of age and older who were ordered high-risk medications. Two rates are submitted. 1) Percentage of patients who were ordered at least one high-risk medication.
Lower rates are better for this measure.
Patients 2+: 0% · 568 patients
0%568 patients5/55-star benchmark: 100%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
18%1,337 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
26 suppliers90 claims293 services$6.07 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
10 suppliers31 claims47 services$1.17 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
7 suppliers199 claims199 services$191.24 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 19

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

STEVE G KIM D.D.S.
Dentist (General Practice)
111 DEERWOOD RD, SUITE 350
SAN RAMON, CA 94583
Contra Costa County (925) 718-8970
DR. NILOFAR PARVIN DDS
Dentist
111 DEERWOOD RD, SUIT#345
SAN RAMON, CA 94583
Contra Costa County (925) 567-3981
DENTISTAR COMPREHENSIVE DENTAL CARE, INC.
Dentist (General Practice)
111 DEERWOOD RD, SUITE 350
SAN RAMON, CA 94583
Contra Costa County (925) 718-8970
CHERI A DANG DMD 2 INC
Dentist
111 DEERWOOD RD, SUITE 170
SAN RAMON, CA 94583
Contra Costa County (818) 800-4868
NIANNA CRAWFORD
Behavior Technician
111 DEERWOOD RD
SAN RAMON, CA 94583
Contra Costa County (949) 325-4402
IRONHORSE PHYSICAL THERAPY AND PILATES INC.
Physical Therapist
111 DEERWOOD RD, 240
SAN RAMON, CA 94583
Contra Costa County (925) 222-5446
IVAN P. HWANG, M.D., INC
Ophthalmology
111 DEERWOOD RD, SUITE 300
SAN RAMON, CA 94583
Contra Costa County (925) 855-9912
CHERI A DANG DMD INC
Dentist
111 DEERWOOD RD, SUITE 170
SAN RAMON, CA 94583
Contra Costa County (818) 800-4868

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 Yshay Shlesinger's NPI number?

The NPI number for Yshay Shlesinger is 1881799922. It was assigned to this individual provider in the NPPES registry on September 13, 2006.

Where is Yshay Shlesinger located?

Yshay Shlesinger practices at 111 Deerwood Rd Suite 180, San Ramon, CA 94583. The listed phone number is (925) 552-5284.

What is Yshay Shlesinger's specialty?

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

Is Yshay Shlesinger enrolled in Medicare?

Yes. Yshay Shlesinger 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.

Which organization bills Medicare for Yshay Shlesinger's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Yshay Shlesinger reassigns Medicare benefits to Yshay Shlesinger, M.D., A Professional Corporation (San Ramon, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Yshay Shlesinger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Does Yshay Shlesinger hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D2305916) is associated with this NPI, valid through June 6, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Yshay Shlesinger was last updated on September 2, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.