Jeremy Lam, M.D.
NPI 1083140172 · Internal Medicine Physician · Tustin, CA
Jeremy Lam, M.D. is a Internal Medicine Physician provider in Tustin, CA (NPI 1083140172).
Provider details
- NPI number
- 1083140172
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A157228 (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
9 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
12,651 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) |
|---|---|---|
| Test for Allergy Using Allergenic Extract95004 | 6,343 | $4 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 1,157 | $17 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 861 | $72 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Additional Sequential Infusion, 1 Hour Or Less96367 | 696 | $32 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 463 | $133 |
| Unclassified DrugsJ3490 | 432 | $13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Progesterone, Micronizedbrand: Progesterone | 28 | — |
| Metformin Hcl | 20 | 12 |
| Levothyroxine Sodium | 14 | — |
| Losartan Potassium | 13 | — |
| Testosterone Cypionate | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-05-10
- Last updated
- 2020-09-25
- Certified
- 2020-09-25
Frequently asked questions
- What is Jeremy Lam's NPI number?
- Jeremy Lam's National Provider Identifier (NPI) is 1083140172, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeremy Lam's specialty?
- Jeremy Lam is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jeremy Lam located?
- Jeremy Lam's practice location on file with NPPES is 2492 Walnut Ave Ste 100, Tustin, CA 92780-6953.
- What is Jeremy Lam's phone number?
- The practice phone number listed in the NPPES registry for Jeremy Lam is (714) 709-8000.
- Is Jeremy Lam's NPI active?
- Yes — Jeremy Lam's NPI (1083140172) is active in the NPPES registry as of the last update on 2020-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.