DR. LEWIS ZHIYUAN LENG M.D.
NPI 1508018508
Neurological Surgery in San Francisco, CA

Q: What is Lewis Leng's NPI number?

The NPI number for Lewis Leng is 1508018508. It was assigned to this individual provider in the NPPES registry on October 21, 2008.

Q: What is Lewis Leng's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Q: When was this NPI record last updated?

The NPPES record for Lewis Leng was last updated on May 6, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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 October 21, 2008PECOS EnrolledAccepts Medicare Assignment

1100 VAN NESS AVE, SAN FRANCISCO, CA 94109(415) 600-0528(415) 369-1207 Get Directions Write a Review

NPPES record last updated: May 6, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 6, 2020, Oct 17, 2019, Mar 20, 2019 and 1 more (4 updates tracked since 2016).

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About Dr. Lewis Zhiyuan Leng M.d. NPPES

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

DR. LEWIS ZHIYUAN LENG M.D. (NPI 1508018508) is an individual neurological surgery provider in San Francisco, California, licensed in California (1145285) and active in the NPI registry since October 2008. He is enrolled in Medicare PECOS, maintains a secondary practice location in Novato, and is a graduate of Perelman School Of Med At The University Of Pennsylvania (2006).

NPPES Registry Identity

NPI1508018508

Entity TypeIndividualMale

Primary Taxonomy207T00000X

Provider Legal NameDR. LEWIS ZHIYUAN LENGCredential: M.D.

Location Address1100 VAN NESS AVESan Francisco, CA 94109

Mailing Address325 Distel CirLos Altos, CA 94022-1408 · (415) 600-0528 · Fax (415) 369-1373

Phone(415) 600-0528

Fax(415) 369-1207

Sole ProprietorNo

Medical School CMSPerelman School Of Med At The University Of PennsylvaniaGraduated 2006

Enumeration DateOctober 21, 2008

Last NPPES UpdateMay 6, 20204 updates tracked since enumeration

NPPES CertifiedMay 6, 2020

✔ NPI 1508018508 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207T00000X

License✔ Licensed in CA · 1145285

Definition

A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.

1100 VAN NESS AVE, San Francisco, CA 94109

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Secondary Practice Location 1

Location 1165 Rowland Way Ste 201Novato, CA 94945-5055 · Phone (415) 600-0528 · Fax (415) 375-4800

Other Identifiers 2

Medicaid1508018508CA

OtherA124672CA · State Medical License

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. Lewis Zhiyuan Leng 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 ID8224277272

PECOS Enrollment IDI20130624000192

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 Lewis Leng reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sutter Bay Medical Foundation

15 mi

Multi-Specialty

12 CAMINO ENCINAS
Orinda, CA 94563

Reassigned Medicare billing, California enrollment
4,479 clinicians in this Medicare group

NPI 1366898538 (510) 204-8180

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

Areas of Expertise CMS Part B claims 11

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.

158 services134 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.

62 services62 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.

54 services49 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.

42 services38 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

40 services40 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

34 services34 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94109 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

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

Most-billed visit code 99213

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 20

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

CHIALIN LEE PA-C

Physician Assistant