Warren William Acker, MD
Student in an Organized Health Care Education/Training Program · Boston, MA
Warren William Acker, MD is a student in an organized health care education/training program with a practice address in Boston, Massachusetts, and NPI 1528697430, issued on Apr 2, 2020. Check the license (Massachusetts 3013512, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Warren William Acker
- Credential
- MD
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- License number
- 3013512 MA
Self-reported in NPPES; status is on the state search - Practice location
- 800 Washington St # 238, Boston, MA 02111
- Phone
- (617) 636-7010
- Enumerated
- Apr 2, 2020
- Record last updated
- Jul 5, 2023
- Fax
- (617) 636-7100
- Medicare enrollment
- Enrolled (PECOS I20250829003277); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 11,235 in Massachusetts → Look up another NPI →
Also registered at 800 Washington St # 238
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rahma Aldhaheri, MDStudent in an Organized Health Care Education/Training Program1821696378
- Raphaella De Paula Ferreira, MDStudent in an Organized Health Care Education/Training Program1972245553
- Oscar Gayoso Liviac, MDStudent in an Organized Health Care Education/Training Program1053195008
- Maher Jafar, MDStudent in an Organized Health Care Education/Training Program1538593348
- Michael Smith, MDStudent in an Organized Health Care Education/Training Program1275196354
- Ankita Subedi, M.D.Internal Medicine Physician1669856159
Verify Warren William Acker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 3013512Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024
49 Medicare Part D claims for 21 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D.
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 one group practice
- Pratt Medical Group IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Warren William Acker among 11,235 student in an organized health care education/training program records in Massachusetts
Warren William Acker, MD is one of 11,235 student in an organized health care education/training program records with a practice address in Massachusetts. 26% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 22% of them.
- NPI issued2020 · 22% of these records are older, 74% newer
- In a Medicare fileYes · 26% of these records are
- In the CMS Doctors and Clinicians fileYes · 4% of these records are
- Graduated2020 · median 2019 among the 442 with a school on file
- Record last updated2023 · 27% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6,126 student in an organized health care education/training program records list a practice address in Boston
They are 6,126 of the 41,865 NPPES records with a practice address in Boston, and 11,235 student in an organized health care education/training program records in Massachusetts.
All 11,235 in Massachusetts → Every provider in Boston → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Samara Ahmed, MDBoston, MA 021111023269669
- Ghassan Al-Turki, BDSBoston, MA 021111184852352
- Ruaa AlamoudiBoston, MA 021111851727929
- Noor Albar, MDBoston, MA 021111972866317
- Mohamed Aljaabari, MB BCH BAO MRCPIBoston, MA 021111295997880
- Julie Bartholomew, MDBoston, MA 021111750590832
- Jonathan Caranfa, MD, PHARMDBoston, MA 021111508112517
- Robert Dunlea, M.D., M.S.Boston, MA 021111568781169
Common questions
What is Warren William Acker, MD's NPI number?
Warren William Acker, MD's National Provider Identifier (NPI) is 1528697430, issued on Apr 2, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Warren William Acker, MD located?
The NPPES record lists a practice address at 800 Washington St # 238, Boston, MA, 02111. Phone: (617) 636-7010. Providers update this record themselves, so call before visiting.
How can I verify Warren William Acker, MD's license?
NPPES lists Massachusetts license number 3013512, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Warren William Acker, MD prescribe under Medicare Part D?
In 2024, Warren William Acker, MD had 49 Medicare Part D claims for 21 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.