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Dr. Ian A. Lang, DO
NPI1184786998PAC ID4789821596
- Medicare services, 2021
- 823
- Part D claims, 2024
- 5,957
- Publications
- 1
- Affiliated sites
- 2
- Medical group
- 1
- Practice address
- 280 Exempla Cr, Lafayette, CO 80026
- Practice phone
- Call (303) 338-3456
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Rock Creek Medical Offices
Mammography / Breast Imaging Center · Lafayette, Colorado
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Dr. Ian A. Lang is an internist in Lafayette, Colorado
Dr. Lang practices at Rock Creek Medical Offices in Lafayette, Colorado.
Dr. Lang's NPI, 1184786998, was assigned on December 15, 2006. Dr. Lang graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 2006. Dr. Lang holds Colorado license 52525.
NPI and contact details
- NPI
- 1184786998NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789821596
- NPI enumeration date
- December 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (303) 338-3456
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ian A. Lang practices at Rock Creek Medical Offices in Lafayette, Colorado
Dr. Lang's primary practice is Rock Creek Medical Offices, at 280 Exempla Cr, Lafayette, CO 80026. The practice phone is (303) 338-3456.
- Rock Creek Medical Offices280 Exempla Cr, Lafayette, CO 80026Phone(303) 338-3456
Source: Dmand AI Affiliation Data
Dr. Ian A. Lang is affiliated with 2 sites of care and 1 medical group
Dr. Lang's primary practice is Rock Creek Medical Offices in Lafayette, Colorado. The medical group on file is Colorado Permanente Medical Group. Dmand AI also links Dr. Lang to 1 more therapy and rehab clinic, named with a free account.
Rock Creek Medical OfficesPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ian A. Lang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lang practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rock Creek Medical Offices | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ian A. Lang is one of 1,668 internists in Colorado
Internal medicine is Dr. Lang's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lang is licensed in Colorado.
Specialties and state licenses
- Internal medicine, ColoradoPrimary
Internists near Dr. Lang
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ian A. Lang billed Medicare for 823 services in 2021
CMS data shows 823 Medicare services from Dr. Lang across 5 procedure codes in 2021. Medicare paid $25,572 for them. Every service was in an office.
Medicare services, 2021823
Paid by Medicare$25,572
Procedure codes5
Dr. Lang compared with the Colorado median for internists, 2021
- Dr. Lang
- Colorado median
- Medicare services
- 823vs 3772.2 times
- Part D claims
- 5,457vs 31817.2 times
Medians across 1,630 internists in Colorado with Dmand AI profiles that report each measure.
Dr. Lang's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lang and other internists in Colorado.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ian A. Lang's patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Dr. Lang's median patient age at 60, with 47% women.
Dr. Lang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women47%
- Men53%
Source: Dmand AI Patient Panel Data
Dr. Ian A. Lang wrote 5,957 Medicare Part D claims in 2024
In 2024, Dr. Lang wrote 5,957 Medicare Part D claims for 537 patients. 89% of them were for generic drugs. CMS names the drug for 5,457 of them, across 86 drugs with 11 or more claims each, at $224,730 in total drug cost. In 2023, CMS named 5,256 claims across 85 drugs.
Part D claims, 20245,957
Drugs named by CMS86
Total drug cost$224,730
Part D patients537
Dr. Lang's Part D claims by kind of drug, 2024
- Generic5,276 claims89%
- Brand-name632 claims11%
- Other49 claims1%
Dr. Lang's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Lang's Part D claims, 2024
- Opioids3%169 of 5,957 claims
- Antibiotics1%79 of 5,957 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5,2562024: 5,4574%
Drugs named by CMS: 86 in 2024, 85 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Ian A. Lang takes part in Medicare
Dr. Lang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Ian A. Lang has 1 publication on record
Dmand AI links 1 paper to Dr. Lang. Dr. Lang's most frequent co-author is Hitesh Deshmukh, MD, PhD.
Papers1
Dr. Lang's most frequent co-authors
Recent publications by Dr. Lang
See who Dr. Lang researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Lang works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ian A. Lang graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville
Dr. Lang graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 2006.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ian A. Lang's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ian A. Lang
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Ian A. Lang's NPI number?
Dr. Ian A. Lang's NPI number is 1184786998. It was assigned on December 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ian A. Lang?
Dr. Ian A. Lang is an internist in Lafayette, Colorado. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Ian A. Lang practice?
Dr. Lang practices at 280 Exempla Cr, Lafayette, CO 80026. Dr. Lang's primary practice is Rock Creek Medical Offices in Lafayette, Colorado. Dmand AI also links Dr. Lang to 1 therapy and rehab clinic.
What is Dr. Ian A. Lang's office phone number?
The practice phone on file for Dr. Lang is (303) 338-3456.
What is Dr. Ian A. Lang's medical license number?
Dr. Lang holds Colorado license 52525.
What medical group is Dr. Ian A. Lang part of?
Dr. Lang is linked to Colorado Permanente Medical Group.
Does Dr. Ian A. Lang accept Medicare?
Yes. CMS data shows Dr. Lang billed Medicare for 823 services in 2021, and Dr. Lang accepts Medicare assignment.
What services does Dr. Ian A. Lang bill to Medicare?
In 2021, Dr. Lang's most billed Medicare services were medical service (0001A), medical service (0004A) and medical service (0011A).
Where did Dr. Ian A. Lang go to medical school?
Dr. Lang graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 2006.
What drugs does Dr. Ian A. Lang prescribe most?
In 2024 Medicare Part D data, Dr. Lang's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Rosuvastatin Calcium.
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How long has Dr. Ian A. Lang been practicing?
Dr. Lang graduated from medical school in 2006, 20 years ago.
Does Dr. Ian A. Lang do research?
Dmand AI links 1 publication to Dr. Lang.
Who does Dr. Ian A. Lang publish with?
Dr. Lang's most frequent co-authors are Hitesh Deshmukh, MD, PhD (1 shared paper).
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