Lal Yilmaz-Gonzalez, M.D.
NPI 1215065891 · Surgery Physician · Mill Valley, CA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lal Yilmaz-Gonzalez, M.D. is a Surgery Physician provider in Mill Valley, CA (NPI 1215065891).
Provider details
- NPI number
- 1215065891
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A71198 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,892 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 1,322 | $84 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 1,067 | $201 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 1,012 | $121 |
| Advance Care Planning, First 30 Minutes99497 | 356 | $83 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 135 | $171 |
Typical Medicare-allowed amounts for these services range $83–$201 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 176 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 910 | 168 |
| Amlodipine Besylate | 626 | 103 |
| Apixabanbrand: Eliquis | 624 | 66 |
| Gabapentin | 566 | 91 |
| Tamsulosin Hcl | 449 | 67 |
| Furosemide | 442 | 63 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-02
- Last updated
- 2008-01-22
Frequently asked questions
- What is Lal Yilmaz-Gonzalez's NPI number?
- Lal Yilmaz-Gonzalez's National Provider Identifier (NPI) is 1215065891, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lal Yilmaz-Gonzalez's specialty?
- Lal Yilmaz-Gonzalez is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Lal Yilmaz-Gonzalez located?
- Lal Yilmaz-Gonzalez's practice location on file with NPPES is 41 De Silva Island Dr, Mill Valley, CA 94941-3024.
- What is Lal Yilmaz-Gonzalez's phone number?
- The practice phone number listed in the NPPES registry for Lal Yilmaz-Gonzalez is (415) 476-1236.
- Does Lal Yilmaz-Gonzalez accept Medicare?
- Lal Yilmaz-Gonzalez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lal Yilmaz-Gonzalez's NPI active?
- Yes — Lal Yilmaz-Gonzalez's NPI (1215065891) is active in the NPPES registry as of the last update on 2008-01-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.