Ian Lang, DO
NPI 1184786998 · Internal Medicine Physician · Lafayette, CO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ian Lang, DO is a Internal Medicine Physician provider in Lafayette, CO (NPI 1184786998).
Provider details
- NPI number
- 1184786998
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 86 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 556 | 157 |
| Losartan Potassium | 271 | 83 |
| Rosuvastatin Calcium | 265 | 81 |
| Levothyroxine Sodium | 248 | 67 |
| Amlodipine Besylate | 215 | 68 |
| Tamsulosin Hcl | 178 | 56 |
| Alendronate Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-15
- Last updated
- 2021-05-03
- Certified
- 2021-05-03
Frequently asked questions
- What is Ian Lang's NPI number?
- Ian Lang's National Provider Identifier (NPI) is 1184786998, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ian Lang's specialty?
- Ian Lang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ian Lang located?
- Ian Lang's practice location on file with NPPES is 280 Exempla Cir, Lafayette, CO 80026-3370.
- What is Ian Lang's phone number?
- The practice phone number listed in the NPPES registry for Ian Lang is (303) 338-4545.
- Does Ian Lang accept Medicare?
- Ian Lang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ian Lang's NPI active?
- Yes — Ian Lang's NPI (1184786998) is active in the NPPES registry as of the last update on 2021-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.