DR. VISWAM SIVA NAIR MD
NPI 1336336460
Internal Medicine - Pulmonary Disease in Berkeley, CA

Q: What is Viswam Nair's NPI number?

The NPI number for Viswam Nair is 1336336460. It was assigned to this individual provider in the NPPES registry on October 2, 2007.

Q: What is Viswam Nair's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Q: When was this NPI record last updated?

The NPPES record for Viswam Nair was last updated on September 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.

Active since October 02, 2007PECOS EnrolledAccepts Medicare Assignment

2850 TELEGRAPH AVE STE 120, BERKELEY, CA 94705(510) 204-8140(510) 506-7721 Get Directions Write a Review

NPPES record last updated: September 18, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 18, 2025, Jan 27, 2021, Aug 29, 2019 and 1 more (4 updates tracked since 2018).

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About Dr. Viswam Siva Nair Md NPPES

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

DR. VISWAM SIVA NAIR MD (NPI 1336336460) is an individual pulmonary disease provider in Berkeley, California, licensed in California (A93740) and active in the NPI registry since October 2007. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2004).

NPPES Registry Identity

NPI1336336460

Entity TypeIndividualMale

Primary Taxonomy207RP1001X

Provider Legal NameDR. VISWAM SIVA NAIRCredential: MD

Location Address2850 TELEGRAPH AVE STE 120Berkeley, CA 94705-1159

Mailing AddressPo Box 276950Sacramento, CA 95827-6950

Phone(510) 204-8140

Fax(510) 506-7721

Sole ProprietorNo

Medical School CMSOtherGraduated 2004

Enumeration DateOctober 2, 2007

Last NPPES UpdateSeptember 18, 20254 updates tracked since enumeration

NPPES CertifiedSeptember 18, 2025

✔ NPI 1336336460 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

Licenses✔ Licensed in CA · A93740✔ Licensed in WA · MD60959262

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

2850 TELEGRAPH AVE STE 120, Berkeley, CA 94705

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Secondary Practice Locations 2

Location 1825 Eastlake Ave ESeattle, WA 98109-4405 · Phone (206) 520-5000

Location 24053 Lone Tree Way Ste 201Antioch, CA 94531-6210 · Phone (510) 204-5479 · Fax (510) 506-7721

Other Identifiers 1

Medicaid1336336460WA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.Insurance ›

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. Viswam Siva Nair Md 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 ID7719047356

PECOS Enrollment IDI20081128000017, I20191002003125

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 8

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.

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

101 services94 patients

Test to determine lung volumes using sensors 94726

This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.

98 services92 patients

Test to measure expiratory airflow and volume 94010

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

79 services70 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.

41 services34 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

33 services22 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.

29 services29 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94705 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.

Referred Medical Equipment & Supplies CMS DME claims

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

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

1 supplier12 claims12 services$67.73 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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Other Providers at the Same Location NPPES 10

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

DR. KOVID TRIVEDI M.B.B.S.

Internal Medicine (Pulmonary Disease)