Maggie Johnson, M.D.
Family Medicine Physician · Rowley, MA
Maggie Johnson, M.D. is a family medicine physician with a practice address in Rowley, Massachusetts, and NPI 1598119802, issued on Apr 22, 2016. Check the license (Massachusetts 278377, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Maggie Johnson
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 278377 MA
Self-reported in NPPES; status is on the state search - Practice location
- 414 Haverhill St, Rowley, MA 01969
- Phone
- (877) 379-5522
- Enumerated
- Apr 22, 2016
- Entity
- Type 1 · individual
Also registered at 414 Haverhill St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashley BruceFamily Medicine Physician1912697095
- Jocelyn Graham, MS, RD, LDNRegistered Dietitian1427568567
- Aimee Hromadka, MDFamily Medicine Physician1184611535
- Kathryn Larson, C-NPMaternal & Fetal Medicine Physician1487131579
- Teresa Llorens, M.D.Internal Medicine Physician1861643769
- Leanne Roberts, N.P.Nurse Practitioner1184650012
Verify Maggie Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 278377Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
5% fewer Medicare Part D claims than the average family medicine physician in 2024
3,358 Medicare Part D claims for 375 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 57 claims were for opioids.
Most prescribed
- Atorvastatin Calcium293 claims
- Lisinopril158 claims
- Amlodipine Besylate133 claims
- Omeprazole125 claims
- Rosuvastatin Calcium110 claims
- Metoprolol Succinate109 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.
One hospital or facility affiliation
- Mass General Brigham Medical Group Northern Massachusetts IncRowley, MA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
4 family medicine physician records list a Rowley practice address
They are 4 of the 79 NPPES records with a Rowley practice address, and 2,226 family medicine physician records in Massachusetts.
All 4 in Rowley → All 2,226 in Massachusetts → Every provider in Rowley →
Other family medicine physician records in Massachusetts
- Salah Abass, M.D.Methuen, MA1417959776
- Sheila Abdallah, MDWorcester, MA1821356312
- Jonathan Abel, DOSpringfield, MA1700897196
- Mohamed Abib, MDSturbridge, MA1639281090
- Kevin Abraham, M.D.Worcester, MA1689037673
- Janet Abrahamian, M.D.West Boylston, MA1932156627
- John Abramson, M.D.Ipswich, MA1275613903
- John Paul Abroguena, MDPlainville, MA1235361080
- Aliza Acker-Bernstein, M.D.Peabody, MA1023057551
- Lisa Adams, MDFalmouth, MA1235404336
Common questions
What is Maggie Johnson, M.D.'s NPI number?
Maggie Johnson, M.D.'s National Provider Identifier (NPI) is 1598119802, issued on Apr 22, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Maggie Johnson, M.D. located?
The NPPES record lists a practice address at 414 Haverhill St, Rowley, MA, 01969. Phone: (877) 379-5522. Providers update this record themselves, so call before visiting.
How can I verify Maggie Johnson, M.D.'s license?
NPPES lists Massachusetts license number 278377, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Maggie Johnson, M.D. prescribe under Medicare Part D?
In 2024, Maggie Johnson, M.D. had 3,358 Medicare Part D claims for 375 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.