John L. Niles, MD
Nephrology Physician · Boston, MA
John L. Niles, MD is a nephrology physician with a practice address in Boston, Massachusetts, and NPI 1316912033, issued on Feb 17, 2006. Check the license (Massachusetts 54243, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- John L. Niles
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 54243 MA
Self-reported in NPPES; status is on the state search - Practice location
- 101 Merrimac St, Boston, MA 02114
- Phone
- (617) 726-4132
- Enumerated
- Feb 17, 2006
- Record last updated
- Feb 4, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (617) 726-4213
- Medicaid ID
- 110045431/A MA
- Medicare enrollment
- Enrolled (PECOS I20040503000717); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 1981
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 101 Merrimac St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Valerie Brathwaite, MSW, LICSWClinical Social Worker1619364122
- Sara Emami, M.D.Internal Medicine Physician1801101027
- Laura Harward, LICSWSocial Worker1487039160
- Aaron Hoffman, DOFamily Medicine Physician1245591098
- Jessica Hu, M.D.Internal Medicine Physician1417392440
- Elizabeth Lamont, MDMedical Oncology Physician1346224862
Verify John L. Niles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 54243Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average nephrology physician in 2024
490 Medicare Part D claims for 94 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone39 claims
- Losartan Potassium24 claims
- Sulfamethoxazole-Trimethoprim24 claims
- Amlodipine Besylate23 claims
- Furosemide21 claims
- Carvedilol19 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: $1,757.29
13 payments; by number, the most common kind was food and beverage; the largest payer was Alexion Pharmaceuticals, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 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
- John L Niles MD PLLCBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nephrology Physician providers in Massachusetts
There are 417 nephrology physician records in Massachusetts.
Other nephrology physician records in Massachusetts
- Amtul Aala, MDBoston, MA1174946347
- Reza Abdi, MDBoston, MA1356359368
- Marat Abdullin, M.D.Springfield, MA1619159712
- Vivian AbernethyBoston, MA1710960232
- Rekha Abichandani, M.D.Cambridge, MA1912033598
- Konstantin Abramov, M.D.Worcester, MA1992854707
- Krishna Agarwal, M.B.B.S.Springfield, MA1477916120
- Nikhil AgrawalBoston, MA1467722579
- Ayman Al Jurdi, M.D.Boston, MA1043690332
- Laith Al Rabadi, M.D.Boston, MA1821309188
Common questions
What is John L. Niles, MD's NPI number?
John L. Niles, MD's National Provider Identifier (NPI) is 1316912033, issued on Feb 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John L. Niles, MD located?
The NPPES record lists a practice address at 101 Merrimac St, Boston, MA, 02114. Phone: (617) 726-4132. Providers update this record themselves, so call before visiting.
How can I verify John L. Niles, MD's license?
NPPES lists Massachusetts license number 54243, 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 John L. Niles, MD prescribe under Medicare Part D?
In 2024, John L. Niles, MD had 490 Medicare Part D claims for 94 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.