DR. DAVID ARTHUR LEWIS M.D.
NPI 1316017858
Internal Medicine in Mountain View, CA

Q: What is David Lewis's NPI number?

The NPI number for David Lewis is 1316017858. It was assigned to this individual provider in the NPPES registry on November 9, 2006.

Q: What is David Lewis's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for David Lewis was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.

Active since November 09, 2006PECOS EnrolledCLIA 05D0685015 · Waiver

12.5/100

CMS Quality Rating

2204 GRANT RD, SUITE 103, MOUNTAIN VIEW, CA 94040(650) 967-8890(650) 967-8891 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Dr. David Arthur Lewis M.d. NPPES

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

DR. DAVID ARTHUR LEWIS M.D. (NPI 1316017858) is an individual internal medicine provider in Mountain View, California, licensed in California (G29804) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through August 31, 2028, and is a graduate of University Of Southern California Keck School Of Medicine (1974).

NPPES Registry Identity

NPI1316017858

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. DAVID ARTHUR LEWISCredential: M.D.

Location Address2204 GRANT RD, SUITE 103Mountain View, CA 94040-3855

Mailing Address2204 Grant Rd, Suite 103Mountain View, CA 94040-3855 · (650) 967-8890 · Fax (650) 967-8891

Phone(650) 967-8890

Fax(650) 967-8891

Sole ProprietorYes

Medical School CMSUniversity Of Southern California Keck School Of MedicineGraduated 1974

Enumeration DateNovember 9, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1316017858 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · G29804

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.

2204 GRANT RD, Mountain View, CA 94040

Open in Google Maps ↗

Other Identifiers 3

Medicare UPINA44171

Medicaid00G298040CA

Medicare ID-Type Unspecified00G298040

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. David Arthur Lewis M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6204918006

PECOS Enrollment IDI20080201000310

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 Reassignments

Medicare enrollment records show David Lewis reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

David A. Lewis, M.D., Inc.

Same address

Primary Care

2204 GRANT RD, SUITE 105
Mountain View, CA 94040

Reassigned Medicare billing, California enrollment
Medicare enrollment name: David A Lewis MD Inc

NPI 1811183346 (650) 967-8890

Physician Services At El Camino Hospital

0.3 mi

General Acute Care Hospital

2500 GRANT RD, MS OAK 209
Mountain View, CA 94040

Reassigned Medicare billing, California enrollment
57 clinicians in this Medicare group

NPI 1669575585 (650) 988-7711

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 05D0685015

David A Lewis MD Inc · Mountain View, CA

Active · expires Aug 31, 2028

CLIA Number05D0685015

Laboratory TypePhysician Office

Certificate Effective DateSeptember 1, 2026

Certificate Expiration DateAugust 31, 2028

Laboratory DirectorDavid A. Lewis

Laboratory Phone(415) 967-8891

Laboratory LocationDavid A Lewis MD Inc2204 Grant Rd Ste 103, Mountain View, CA 94040

CLIA data matches this NPI record on: Address

This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 14

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 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.

535 services222 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

471 services365 patients

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.

384 services51 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

236 services151 patients

Urinalysis, manual test 81002

A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.

135 services121 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.

128 services126 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

68 services49 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.

27 services24 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.

27 services23 patients

Influenza vaccine split virus, preservative free 90662

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

26 services25 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

26 services25 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.

14 services14 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.

14 services14 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

13 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94040 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

$156.67 typical visit price

range $70.37 – $206.04

Typical copayment $39.16 (range $17.59 – $51.51)

Most-billed visit code 99204

Established Patient

$121.77 typical visit price

range $23.96 – $169.60

Typical copayment $30.44 (range $5.99 – $42.40)

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.

12.5/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

Improvement Activities

Cost

41.68

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.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

6 suppliers17 claims33 services$5.15 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 16

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

ALFRED BUTNER, M.D. INC.

General Practice

2204 GRANT RD, SUITE 203
MOUNTAIN VIEW, CA 94040

Santa Clara County (650) 960-1100

PREETHI CHAKRAVARTHY SRIDHAR MD

Internal Medicine (Endocrinology, Diabetes & Metabolism)

2204 GRANT RD, SUITE 103
MOUNTAIN VIEW, CA 94040

Santa Clara County (650) 967-8841

JOYCE TATELMAN MD, INC.

Clinic/Center

2204 GRANT RD, SUITE 104
MOUNTAIN VIEW, CA 94040

Santa Clara County (650) 528-5110

VINITA DHIR TANDON M.D.

Internal Medicine (Endocrinology, Diabetes & Metabolism)

2204 GRANT RD, SUITE 103
MOUNTAIN VIEW, CA 94040

Santa Clara County (650) 967-8841

MIDPENINSULA SURGICAL ASSOCIATES MEDICAL GROUP

Surgery (Surgical Oncology)

2204 GRANT RD, STE 203
MOUNTAIN VIEW, CA 94040

Santa Clara County (650) 964-0600

DR. ANDREW B LIPTON MD

Internal Medicine (Gastroenterology)

2204 GRANT RD, SUITE 104
MOUNTAIN VIEW, CA 94040

Santa Clara County (650) 964-7700

DR. SOO JEAN ENG MD

Internal Medicine (Endocrinology, Diabetes & Metabolism)

2204 GRANT RD, #103
MOUNTAIN VIEW, CA 94040

Santa Clara County (650) 967-8841

DR. ROBERT L MITCHELL MD

Thoracic Surgery (Cardiothoracic Vascular Surgery)

2204 GRANT RD, STE 105
MOUNTAIN VIEW, CA 94040

Santa Clara County (650) 968-3333

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 David Lewis's NPI number?

The NPI number for David Lewis is 1316017858. It was assigned to this individual provider in the NPPES registry on November 9, 2006.

Where is David Lewis located?

David Lewis practices at 2204 Grant Rd Suite 103, Mountain View, CA 94040. The listed phone number is (650) 967-8890.

What is David Lewis's specialty?

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

Is David Lewis enrolled in Medicare?

Yes. David Lewis is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for David Lewis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), David Lewis reassigns Medicare benefits to 2 organizations: David A. Lewis, M.D., Inc. (Mountain View, CA) and Physician Services At El Camino Hospital (Mountain View, CA). Each 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 David Lewis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Does David Lewis hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0685015) is associated with this NPI, valid through August 31, 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 David Lewis was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.

About Dr. David Arthur Lewis M.d. NPPES

NPPES Registry Identity

Specialties & Licenses

Other Identifiers 3

Medicare Participation & PECOS CMS

Medicare Enrollment Status

Medicare Billing Reassignments

CLIA Laboratory Certificates CMS CLIA

Certificate of Waiver · 05D0685015

Areas of Expertise CMS Part B claims 14

Physician Visit Costs CMS claims · ZIP area

Medicare Quality Performance CMS QPP · MIPS

Referred Medical Equipment & Supplies CMS DME claims

Other Providers at the Same Location NPPES 16

Frequently Asked Questions NPPES & CMS

What is David Lewis's NPI number?

Where is David Lewis located?

What is David Lewis's specialty?

Is David Lewis enrolled in Medicare?

Which organizations bill Medicare for David Lewis's services?

Does David Lewis hold a CLIA laboratory certificate?

When was this NPI record last updated?

Certificate of Waiver 05D0685015