Dr. Walter C. Lang, DO
- Medicare services, 2024
- 1,392
- Medicare patients, 2024
- 259
- Part D claims, 2024
- 4,387
- Industry payments
- $148
- Affiliated sites
- 9
- Practice address
- 11800 E 12 Mile Rd, Warren, MI 48093
- Practice phone
- Call (586) 573-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Henry Ford Warren Hospital
Warren, Michigan
Find Dr. Lang's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Walter C. Lang is an internist in Warren, Michigan
Dr. Lang practices at Henry Ford Warren Hospital in Warren, Michigan.
Dr. Lang's NPI, 1548244304, was assigned on December 5, 2005. Dr. Lang graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 1989. Dr. Lang holds Michigan license 5101010757.
- NPI
- 1548244304NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860498318
- NPI enumeration date
- December 5, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (586) 573-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Walter C. Lang practices at Henry Ford Warren Hospital in Warren, Michigan
Dr. Lang's primary practice is Henry Ford Warren Hospital, at 11800 E 12 Mile Rd, Warren, MI 48093 in Macomb County. The practice phone is (586) 573-5000.
- Henry Ford Warren Hospital11800 E 12 Mile Rd, Warren, MI 48093 · Macomb CountyPhone(586) 573-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Walter C. Lang is affiliated with 10 sites of care and 6 medical groups
Dr. Lang's primary practice is Henry Ford Warren Hospital in Warren, Michigan. The medical group on file is Inpatient Consultants of Michigan PC. Dmand AI also links Dr. Lang to 6 more group practices and clinics, 5 medical groups, 1 home health agency, 1 hospice and 1 skilled nursing facility, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Walter C. Lang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lang practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Henry Ford Warren Hospital | Available with a free account |
| +9 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Walter C. Lang is one of 4,804 internists in Michigan
Internal medicine is Dr. Lang's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lang is licensed in Michigan.
Specialties and state licenses
- Internal medicine, MichiganPrimary
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. Walter C. Lang billed Medicare for 1,392 services in 2024
CMS data shows 1,392 Medicare services from Dr. Lang across 9 procedure codes in 2024, for 259 Medicare patients. Medicare paid $99,193 for them.
Dr. Lang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,1272024: 1,33018%
- Other services
- 2023: 422024: 457%
- Surgery
- 2023: 02024: 17
Where Dr. Lang's Medicare services took place, 2024
- In an office16612%
- In a facility1,22688%
Dr. Lang compared with the Michigan median for internists, 2024
- Dr. Lang
- Michigan median
- Medicare services
- 1,392vs 4233.3 times
- Medicare patients
- 259vs 15963% above
- Part D claims
- 3,816vs 31412.2 times
Medians across 4,524 internists in Michigan with Dmand AI profiles that report each measure.
Dr. Lang's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Lang?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lang and other internists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Walter C. Lang treated 259 Medicare patients in 2024, average age 74
CMS counts 259 Medicare patients who saw Dr. Lang in 2024. The largest group is 65 to 74, with 93 patients. 75% of them have high blood pressure, and 71% have mood disorders. 73% are also on Medicaid. Their average risk score is 3.00, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Lang's median patient age at 78, with 52% women.
Dr. Lang's Medicare patients by age, 2024
Dr. Lang's Medicare patients by sex, 2024
- Women13653%
- Men12347%
Chronic conditions among Dr. Lang's Medicare patients, 2024
- High blood pressure75%
- Mood disorders71%
- High cholesterol61%
- Depression59%
- Alzheimer's and dementia58%
- Arthritis55%
- Anxiety53%
- Diabetes50%
Share of Medicare patients with each condition. A patient can have several.
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 78
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Walter C. Lang wrote 4,387 Medicare Part D claims in 2024
In 2024, Dr. Lang wrote 4,387 Medicare Part D claims for 147 patients. 88% of them were for generic drugs. CMS names the drug for 3,816 of them, across 92 drugs with 11 or more claims each, at $225,162 in total drug cost. In 2023, CMS named 3,325 claims across 90 drugs.
Dr. Lang's Part D claims by kind of drug, 2024
- Generic3,870 claims88%
- Brand-name476 claims11%
- Other41 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%123 of 4,387 claims
- Antibiotics2%86 of 4,387 claims
- Antipsychotics, patients 65 and over2%103 of 4,387 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: 3,3252024: 3,81615%
Drugs named by CMS: 92 in 2024, 90 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
Dr. Walter C. Lang ranks in the 71st percentile for removal of tissue in Medicare
Dr. Lang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 23 procedures of removal of tissue by Dr. Lang, more than 71% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Lang ranks in Medicare procedure volume
- Removal of tissue
- 71st percentile23 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Walter C. Lang received $148 in industry payments from 2018 to 2022
CMS Open Payments shows 3 general payments to Dr. Lang from 3 drug and device companies from 2018 to 2022. Food and beverage make up the largest share, 100% of the total. Sunovion Pharmaceuticals Inc. paid the most, $104.
General payments to Dr. Lang by program year, 2018 to 2022
Companies that paid Dr. Lang the most, 2018 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Walter C. Lang graduated from Des Moines University of Osteopathic Medicine and Health Sciences
Dr. Lang graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Walter C. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Walter C. 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. Walter C. Lang's NPI number?
Dr. Walter C. Lang's NPI number is 1548244304. It was assigned on December 5, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Walter C. Lang?
Dr. Walter C. Lang is an internist in Warren, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Walter C. Lang practice?
Dr. Lang practices at 11800 E 12 Mile Rd, Warren, MI 48093. Dr. Lang's primary practice is Henry Ford Warren Hospital in Warren, Michigan. Dmand AI also links Dr. Lang to 6 group practices and clinics, 5 medical groups, 1 home health agency, 1 hospice and 1 skilled nursing facility.
What is Dr. Walter C. Lang's office phone number?
The practice phone on file for Dr. Lang is (586) 573-5000.
What is Dr. Walter C. Lang's medical license number?
Dr. Lang holds Michigan license 5101010757.
What medical group is Dr. Walter C. Lang part of?
Dr. Lang is linked to Inpatient Consultants of Michigan PC. Dmand AI links Dr. Lang to 5 more medical groups.
Does Dr. Walter C. Lang accept Medicare?
Yes. CMS data shows Dr. Lang billed Medicare for 1,392 services in 2024, and Dr. Lang accepts Medicare assignment.
How many Medicare patients does Dr. Walter C. Lang see?
CMS counts 259 Medicare patients who saw Dr. Lang in 2024, with an average age of 74.
What services does Dr. Walter C. Lang bill to Medicare?
In 2024, Dr. Lang's most billed Medicare services were nursing facility care (99309), nursing facility care (99308) and nursing facility care (99305).
Where did Dr. Walter C. Lang go to medical school?
Dr. Lang graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 1989.
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What drugs does Dr. Walter C. Lang prescribe most?
In 2024 Medicare Part D data, Dr. Lang's most prescribed drugs by claims were Atorvastatin Calcium, Eliquis and Omeprazole.
Has Dr. Walter C. Lang received payments from drug or device companies?
CMS Open Payments shows $148 in general payments to Dr. Lang from 3 companies from 2018 to 2022. The largest total came from Sunovion Pharmaceuticals Inc.
How long has Dr. Walter C. Lang been practicing?
Dr. Lang graduated from medical school in 1989, 37 years ago.
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