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DR. LAL KAYE YILMAZ-GONZALEZ M.D.
NPI 1215065891
Surgery in Mill Valley, CA

Active since March 02, 2007PECOS Enrolled
41 DE SILVA ISLAND DR, MILL VALLEY, CA 94941(415) 476-1236 Get Directions Write a Review

NPPES record last updated: January 22, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Lal Kaye Yilmaz-gonzalez M.d. NPPES

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

DR. LAL KAYE YILMAZ-GONZALEZ M.D. (NPI 1215065891) is an individual surgery provider in Mill Valley, California, licensed in California (A71198) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1215065891
Entity TypeIndividualFemale
Primary Taxonomy208600000X
Provider Legal NameDR. LAL KAYE YILMAZ-GONZALEZCredential: M.D.
Location Address41 DE SILVA ISLAND DRMill Valley, CA 94941-3024
Mailing Address1425 S Main StWalnut Creek, CA 94596-5318 · (925) 295-7930
Phone(415) 476-1236
Sole ProprietorYes
Enumeration DateMarch 2, 2007
Last NPPES UpdateJanuary 22, 2008
✔ NPI 1215065891 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in CA · A71198
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
41 DE SILVA ISLAND DR, Mill Valley, CA 94941
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Other Names 1

Former Name (1)Dr. Lal Kaye Yilmaz M.d.

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Lal Kaye Yilmaz-gonzalez M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

3

Medicare enrollment records show Lal Yilmaz-gonzalez reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Permanente Medical Group Inc
8.2 mi
Internal Medicine
2238 GEARY
San Francisco, CA 94116
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1841373800 (415) 833-2200
Gurpreet S. Dhugga Medical Corporation
31 mi
Internal Medicine
5030 BUSINESS CENTER DR, STE 130
Fairfield, CA 94534
  • Reassigned Medicare billing, California enrollment
  • 16 clinicians in this Medicare group
NPI 1053649376 (707) 864-1056
Snf Specialists Medical Corporation
36 mi
Internal Medicine
1255 TRAVIS BLVD
Fairfield, CA 94533
  • Reassigned Medicare billing, California enrollment
  • 51 clinicians in this Medicare group
NPI 1497265565 (707) 864-1056

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 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.

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308
A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.
1,322 services579 patients
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306
An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.
1,067 services858 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
1,012 services694 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
356 services337 patients
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 99310
A follow-up nursing facility visit is a routine check-up that typically lasts about 35 minutes. During this visit, your health status is evaluated, any changes in your condition are noted, and necessary adjustments to your care plan are made. It's an essential part of maintaining your health.
135 services133 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94941 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
$104.67 typical visit price
range $69.07 – $202.63
Typical copayment $26.16 (range $17.26 – $50.65)
Most-billed visit code 99203
Established Patient
$85.00 typical visit price
range $23.44 – $166.64
Typical copayment $21.25 (range $5.86 – $41.66)
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.

Referred Medical Equipment & Supplies CMS DME claims 11

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

Insertion tray with drainage bag with indwelling catheter, foley type, two-way latex with coating (teflon, silicone, silicone elastomer or hydrophilic, etc.) A4314
DME-Orthotic Devices · category DF000N
1 supplier11 claims11 services$24.49 avg. paid by Medicare
Urinary catheter anchoring device, leg strap, each A4334
DME-Orthotic Devices · category DF000N
1 supplier11 claims11 services$4.77 avg. paid by Medicare
Bedside drainage bag, day or night, with or without anti-reflux device, with or without tube, each A4357
DME-Orthotic Devices · category DF000N
1 supplier16 claims22 services$9.42 avg. paid by Medicare
Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035
Other-Enteral and Parenteral · category OB006N
2 suppliers16 claims411 services$4.60 avg. paid by Medicare
Enteral formula, nutritionally complete, for special metabolic needs, excludes inherited disease of metabolism, includes altered composition of proteins, fats, carbohydrates, vitamins and/or minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4154
Other-Enteral and Parenteral · category OB006N
2 suppliers16 claims4,678 services$0.55 avg. paid by Medicare
Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
4 suppliers36 claims36 services$49.34 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Lal Yilmaz-gonzalez's NPI number?

The NPI number for Lal Yilmaz-gonzalez is 1215065891. It was assigned to this individual provider in the NPPES registry on March 2, 2007. The provider is also known as Dr. Lal Kaye Yilmaz M.D..

Where is Lal Yilmaz-gonzalez located?

Lal Yilmaz-gonzalez practices at 41 De Silva Island Dr, Mill Valley, CA 94941. The listed phone number is (415) 476-1236.

What is Lal Yilmaz-gonzalez's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Lal Yilmaz-gonzalez enrolled in Medicare?

Yes. Lal Yilmaz-gonzalez is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Lal Yilmaz-gonzalez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lal Yilmaz-gonzalez reassigns Medicare benefits to 3 organizations: Permanente Medical Group Inc (San Francisco, CA), Gurpreet S. Dhugga Medical Corporation (Fairfield, CA) and Snf Specialists Medical Corporation (Fairfield, 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 Lal Yilmaz-gonzalez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Lal Yilmaz-gonzalez was last updated on January 22, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.