Allison Lloyd McDonough, MD
Internal Medicine Physician · Waltham, MA
Allison Lloyd McDonough, MD is an internal medicine physician with a practice address in Waltham, Massachusetts, and NPI 1124091103, issued on Feb 9, 2006. Check the license (Massachusetts 159697, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Allison Lloyd McDonough
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 159697 MA
Self-reported in NPPES; status is on the state search - Practice location
- 52 2ND Ave, Waltham, MA 02451
- Phone
- (781) 487-4040
- Enumerated
- Feb 9, 2006
- Record last updated
- Jul 7, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (781) 487-2870
- Medicare enrollment
- Enrolled (PECOS I20040707000318); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
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Verify Allison Lloyd McDonough in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 159697Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,137 Medicare Part D claims for 251 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 33 claims were for opioids.
Most prescribed
- Atorvastatin Calcium218 claims
- Rosuvastatin Calcium139 claims
- Levothyroxine Sodium124 claims
- Omeprazole93 claims
- Lisinopril86 claims
- Metoprolol Succinate81 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.
Bills Medicare through 3 group practices
- Massachusetts General Physicians Organization IncBoston, MA
- Select Rehabilitation, LLCGlenview, IL
- The General Hospital CorporationBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Allison Lloyd McDonough among 6,825 internal medicine physician records in Massachusetts
Allison Lloyd McDonough, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1997 · median 2004 among the 4,103 with a school on file
- Record last updated2015 · 64% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
32 internal medicine physician records list a practice address in Waltham
They are 32 of the 2,111 NPPES records with a practice address in Waltham, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Waltham → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Devasena Balasubramaniam, M.D.Waltham, MA 024511396936498
- Elenie Bartzokis, M.D.Waltham, MA 024511992827067
- Thomas Fry, MDWaltham, MA 024511588763908
- Bard Geesaman, M.D.Waltham, MA 024511790929123
- Christina Gelev, MDWaltham, MA 024511518958131
- Nathaniel Gunn, M.D.Waltham, MA 024511912041963
- Brittany Hansen, MDWaltham, MA 024511508515297
- Steven Kanner, MDWaltham, MA 024511740270289
Common questions
What is Allison Lloyd McDonough, MD's NPI number?
Allison Lloyd McDonough, MD's National Provider Identifier (NPI) is 1124091103, issued on Feb 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Allison Lloyd McDonough, MD located?
The NPPES record lists a practice address at 52 2ND Ave, Waltham, MA, 02451. Phone: (781) 487-4040. Providers update this record themselves, so call before visiting.
How can I verify Allison Lloyd McDonough, MD's license?
NPPES lists Massachusetts license number 159697, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Allison Lloyd McDonough, MD prescribe under Medicare Part D?
In 2024, Allison Lloyd McDonough, MD had 2,137 Medicare Part D claims for 251 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.