Louis A. Piper, M.D.
Emergency Medicine Physician · Germantown, MD
Louis A. Piper, M.D. is an emergency medicine physician with a practice address in Germantown, Maryland, and NPI 1548539182, issued on Dec 28, 2011. Check the license (Maryland D0083018, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Louis A. Piper
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- D0083018 MD
MD044996 DC
MT203415 PA
Self-reported in NPPES; status is on the state search - Practice location
- 20010 Century Blvd Ste 200, Germantown, MD 20874
- Phone
- (240) 686-2300
- Enumerated
- Dec 28, 2011
- Record last updated
- Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20171018002331); accepts Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,190 in Maryland → Look up another NPI →
Also registered at 20010 Century Blvd Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Andrew Meeks, M.D.Emergency Medicine Physician1750686028
- Tooba Mehta, M.D.Internal Medicine Physician1649665027
Verify Louis A. Piper in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0083018Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% fewer Medicare Part D claims than the average emergency medicine physician in 2024
171 Medicare Part D claims for 122 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin27 claims
- Methylprednisolone19 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.
Industry payments in 2024: $327.60
3 payments; by number, the most common kind was food and beverage; the largest payer was iRhythm Technologies, Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Emergency Medicine Associates P.A., P.C.Washington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Louis A. Piper among 1,190 emergency medicine physician records in Maryland
Louis A. Piper, M.D. is one of 1,190 emergency medicine physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 61% of them.
- NPI issued2011 · 61% of these records are older, 35% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated2013 · median 2010 among the 571 with a school on file
- Record last updated2018 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
33 emergency medicine physician records list a practice address in Germantown
They are 33 of the 1,327 NPPES records with a practice address in Germantown, and 1,190 emergency medicine physician records in Maryland.
All 1,190 in Maryland → Every provider in Germantown → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Jason Adler, MDGermantown, MD 208741376751115
- Nafis Ahmed, MDGermantown, MD 208741396970414
- Anna Ansaldo, MDGermantown, MD 208741760645048
- Jonathan D'Souza, MDGermantown, MD 208741205097375
- Maxwell Ginsburg, M.D.Germantown, MD 208741730324492
- Mark Goldstein, M.D.Germantown, MD 208741760656631
- Robert Harvey, D.O.Germantown, MD 208741922068154
- Anoop Kumar, M.D.Germantown, MD 208741891995874
Common questions
What is Louis A. Piper, M.D.'s NPI number?
Louis A. Piper, M.D.'s National Provider Identifier (NPI) is 1548539182, issued on Dec 28, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Louis A. Piper, M.D. located?
The NPPES record lists a practice address at 20010 Century Blvd Ste 200, Germantown, MD, 20874. Phone: (240) 686-2300. Providers update this record themselves, so call before visiting.
How can I verify Louis A. Piper, M.D.'s license?
NPPES lists Maryland license number D0083018, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Louis A. Piper, M.D. prescribe under Medicare Part D?
In 2024, Louis A. Piper, M.D. had 171 Medicare Part D claims for 122 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
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.