Maggie Sullivan Johnson, M.D.
Family Medicine Physician · Rowley, MA
Maggie Sullivan 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 Sullivan 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
- Record last updated
- Oct 29, 2024
- Medicare enrollment
- Enrolled (PECOS I20190703001989); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,265 in Massachusetts → Look up another NPI →
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.Family Medicine Physician1184650012
Verify Maggie Sullivan 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 3,544 among the 117,163 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.
Bills Medicare through one group practice
- Mass General Brigham Medical Group Northern Massachusetts IncRowley, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maggie Sullivan Johnson among 2,265 family medicine physician records in Massachusetts
Maggie Sullivan Johnson, M.D. is one of 2,265 family medicine physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 76% of them.
- NPI issued2016 · 76% of these records are older, 22% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2016 · median 2006 among the 1,529 with a school on file
- Record last updated2024 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 family medicine physician records list a practice address in Rowley
They are 5 of the 79 NPPES records with a practice address in Rowley, and 2,265 family medicine physician records in Massachusetts.
All 2,265 in Massachusetts → Every provider in Rowley → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ashley BruceRowley, MA 019691912697095
- Aimee Hromadka, MDRowley, MA 019691184611535
- George Papanicolaou, D.O.Rowley, MA 019691265437511
- Leanne Roberts, N.P.Rowley, MA 019691184650012
- Tania Bowling, FNP-BCSalem, MA 019701104410471
- Kristin Darden, MDSalem, MA 019701942278049
- Leah KimsSalem, MA 019701619387321
- Kiame Mahaniah, MDSalem, MA 019701790771756
Common questions
What is Maggie Sullivan Johnson, M.D.'s NPI number?
Maggie Sullivan 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 Sullivan 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 Sullivan 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://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Maggie Sullivan Johnson, M.D. prescribe under Medicare Part D?
In 2024, Maggie Sullivan Johnson, M.D. had 3,358 Medicare Part D claims for 375 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.