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SHEFALI TALWAR M.D.
NPI 1376557843
Internal Medicine - Infectious Disease in San Mateo, CA

Active since July 28, 2006PECOS EnrolledAccepts Medicare Assignment
39 N SAN MATEO DR STE 4, SAN MATEO, CA 94401(650) 897-4554(650) 897-4542 Get Directions Write a Review

NPPES record last updated: July 9, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 9, 2025, Jun 2, 2025, Nov 16, 2016 (3 updates tracked since 2016).

About Shefali Talwar M.d. NPPES

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

SHEFALI TALWAR M.D. (NPI 1376557843) is an individual infectious disease provider in San Mateo, California, licensed in California (A86303) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of State University Of New York At Stony Brook, School Of Medicine (1997).

NPPES Registry Identity

NPI1376557843
Entity TypeIndividualFemale
Primary Taxonomy207RI0200X
Provider Legal NameSHEFALI TALWARCredential: M.D.
Location Address39 N SAN MATEO DR STE 4San Mateo, CA 94401-2832
Mailing Address3130 Alpine Road, Suite 288 Pmb 264Portola Valley, CA 94028-7541 · (650) 897-4554 · Fax (650) 897-4542
Phone(650) 897-4554
Fax(650) 897-4542
Sole ProprietorYes
Medical School CMSState University Of New York At Stony Brook, School Of MedicineGraduated 1997
Enumeration DateJuly 28, 2006
Last NPPES UpdateJuly 9, 20253 updates tracked since enumeration
NPPES CertifiedJuly 9, 2025
✔ NPI 1376557843 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in CA · A86303
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
39 N SAN MATEO DR STE 4, San Mateo, CA 94401
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Other Names 1

Other Name (5)Dr. Shefali Talwar Md

Other Identifiers 1

Medicaid00A863030CA

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

Shefali Talwar 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 ID3678548153
PECOS Enrollment IDI20040827001210
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 6

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
196 services59 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
122 services57 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
94 services89 patients
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.
83 services39 patients
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180
This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.
12 services12 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.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94401 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.

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 Shefali Talwar's NPI number?

The NPI number for Shefali Talwar is 1376557843. It was assigned to this individual provider in the NPPES registry on July 28, 2006. The provider is also known as Dr. Shefali Talwar MD.

Where is Shefali Talwar located?

Shefali Talwar practices at 39 N San Mateo Dr Ste 4, San Mateo, CA 94401. The listed phone number is (650) 897-4554.

What is Shefali Talwar's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Shefali Talwar enrolled in Medicare?

Yes. Shefali Talwar 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 Shefali Talwar was last updated on July 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.