Robert D. Lang, MD
Internal Medicine Physician · Grand Rapids, MI
Robert D. Lang, MD is an internal medicine physician with a practice address in Grand Rapids, Michigan, and NPI 1871597377, issued on Jun 13, 2005. Check the license (Michigan 4301061594, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Robert D. Lang
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301061594 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1000 E Paris Ave SE Ste 100, Grand Rapids, MI 49546
- Phone
- (616) 459-3158
- Enumerated
- Jun 13, 2005
- Record last updated
- Nov 16, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (616) 988-0071
- Medicaid ID
- 4199713 MI
- Medicare enrollment
- Enrolled (PECOS I20100319000844); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 1993
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 1000 E Paris Ave SE Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Robert D. Lang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301061594Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average internal medicine physician in 2024
7,041 Medicare Part D claims for 562 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 315 claims were for opioids.
Most prescribed
- Atorvastatin Calcium393 claims
- Amlodipine Besylate281 claims
- Lisinopril268 claims
- Levothyroxine Sodium246 claims
- Omeprazole241 claims
- Hydrocodone-Acetaminophen214 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 3 group practices
- Center For Physical Rehabilitation And Therapy LPGrand Rapids, MI
- Center For Physical Rehabilitation IncGrand Rapids, MI
- Grand Valley Medical Specialists PLCGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert D. Lang among 5,735 internal medicine physician records in Michigan
Robert D. Lang, MD is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1993 · median 2006 among the 3,564 with a school on file
- Record last updated2018 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
451 internal medicine physician records list a practice address in Grand Rapids
They are 451 of the 18,005 NPPES records with a practice address in Grand Rapids, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Grand Rapids → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Ronald Hoogmoed, M.D.Grand Rapids, MI 495461184673121
- Roderick Kim, M.D.Grand Rapids, MI 495461922066984
- Kenneth Nelson, M.D.Grand Rapids, MI 495461811945710
- Marian Oleszkowicz, MDGrand Rapids, MI 495461487600888
- Diardre Quinn, M.D.Grand Rapids, MI 495461124086871
Common questions
What is Robert D. Lang, MD's NPI number?
Robert D. Lang, MD's National Provider Identifier (NPI) is 1871597377, issued on Jun 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert D. Lang, MD located?
The NPPES record lists a practice address at 1000 E Paris Ave SE Ste 100, Grand Rapids, MI, 49546. Phone: (616) 459-3158. Providers update this record themselves, so call before visiting.
How can I verify Robert D. Lang, MD's license?
NPPES lists Michigan license number 4301061594, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert D. Lang, MD prescribe under Medicare Part D?
In 2024, Robert D. Lang, MD had 7,041 Medicare Part D claims for 562 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Robert D. Lang, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.