Christoffer Lam, MD
NPI 1881260537 · Internal Medicine Physician · Austin, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christoffer Lam, MD is a Internal Medicine Physician provider in Austin, TX (NPI 1881260537).
Provider details
- NPI number
- 1881260537
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- U9292 (TX)
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
5 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
17 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 17 | $165 |
Typical Medicare-allowed amounts for these services range $165–$165 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 37 | 12 |
| Lisinopril | 17 | — |
| Amlodipine Besylate | 16 | — |
| Mometasone/Formoterolbrand: Dulera | 11 | — |
| Gabapentin | 11 | — |
| Linaclotidebrand: Linzess | 11 | — |
| Semaglutide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-06-02
- Last updated
- 2024-06-05
- Certified
- 2024-06-05
Frequently asked questions
- What is Christoffer Lam's NPI number?
- Christoffer Lam's National Provider Identifier (NPI) is 1881260537, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christoffer Lam's specialty?
- Christoffer Lam is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christoffer Lam located?
- Christoffer Lam's practice location on file with NPPES is 1500 Red River St, Austin, TX 78701-1918.
- What is Christoffer Lam's phone number?
- The practice phone number listed in the NPPES registry for Christoffer Lam is (512) 324-7000.
- Does Christoffer Lam accept Medicare?
- Christoffer Lam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christoffer Lam's NPI active?
- Yes — Christoffer Lam's NPI (1881260537) is active in the NPPES registry as of the last update on 2024-06-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.