Mark Lam, MD
NPI 1740458629 · Family Medicine Physician · Roseville, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Lam, MD is a Family Medicine Physician provider in Roseville, CA (NPI 1740458629).
Provider details
- NPI number
- 1740458629
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A98782 (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
18 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
834 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 418 | $132 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 217 | $17 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 86 | $137 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 30 | $96 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 21 | $189 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 97 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 273 | 74 |
| Amlodipine Besylate | 229 | 67 |
| Lisinopril | 202 | 55 |
| Losartan Potassium | 151 | 45 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 105 | 18 |
| Gabapentin | 103 | 29 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-02-14
- Last updated
- 2015-06-08
Frequently asked questions
- What is Mark Lam's NPI number?
- Mark Lam's National Provider Identifier (NPI) is 1740458629, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Lam's specialty?
- Mark Lam is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Lam located?
- Mark Lam's practice location on file with NPPES is 3100 Douglas Blvd, Roseville, CA 95661-3866.
- What is Mark Lam's phone number?
- The practice phone number listed in the NPPES registry for Mark Lam is (916) 774-8300.
- Does Mark Lam accept Medicare?
- Mark Lam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Lam's NPI active?
- Yes — Mark Lam's NPI (1740458629) is active in the NPPES registry as of the last update on 2015-06-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.