Johannah Kathryn Merrill, MD
Emergency Medical Services (Emergency Medicine) Physician · Lawrence, MA
Johannah Kathryn Merrill, MD is an emergency medical services (emergency medicine) physician with a practice address in Lawrence, Massachusetts, and NPI 1386098093, issued on Apr 19, 2016. Check the license (Massachusetts 281944, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Johannah Kathryn Merrill
- Credential
- MD
- Primary taxonomy
- Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
- License numbers
- 281944 MA
2019-00453 NC
Self-reported in NPPES; status is on the state search - Practice location
- 1 General St, Lawrence, MA 01841
- Phone
- (434) 981-9742
- Enumerated
- Apr 19, 2016
- Record last updated
- Jul 28, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20250807002970); accepts Medicare assignment
- Medical or professional school
- University Of Virginia School Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest emergency medical services (emergency medicine) physician records → All 43 in Massachusetts → Look up another NPI →
Also registered at 1 General St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Stephen Amoroso, LICSWClinical Social Worker1891270864
- Meredith Bailey, CRNACertified Registered Nurse Anesthetist1841551827
- Benjamin Bautz, MDEmergency Medicine Physician1124440573
- Meghan BertoneCertified Registered Nurse Anesthetist1417579764
Verify Johannah Kathryn Merrill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 281944Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average emergency medical services (emergency medicine) physician in 2024
160 Medicare Part D claims for 105 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D.
Most prescribed
- Cefpodoxime Proxetil18 claims
- Prednisone17 claims
- Doxycycline Hyclate16 claims
- Amoxicillin-Clavulanate Potass13 claims
- Cephalexin12 claims
- Sulfamethoxazole-Trimethoprim11 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.
Johannah Kathryn Merrill among 43 emergency medical services (emergency medicine) physician records in Massachusetts
Johannah Kathryn Merrill, MD is one of 43 emergency medical services (emergency medicine) physician records with a practice address in Massachusetts. 53% 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 81% of them.
- NPI issued2016 · 81% of these records are older, 14% newer
- In a Medicare fileYes · 53% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated2016 · median 1998 among the 21 with a school on file
- Record last updated2020 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medical Services (Emergency Medicine) Physician providers in Massachusetts
There are 43 emergency medical services (emergency medicine) physician records in Massachusetts.
All 43 in Massachusetts → Every provider in Lawrence → Emergency Medical Services (Emergency Medicine) Physician nationwide →
The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes
- Patrick Curran, M.D.Lawrence, MA 018411265417521
- Meghan Dierks, M.D.Lawrence, MA 018411538144472
- Mollie Quip, MDLawrence, MA 018411174148399
- Maria Vytvytska-Dienhart, M.D.Lawrence, MA 018411629053970
- Peter Bevins, M.D.Haverhill, MA 018301710900428
- Barry Fisher, M.D.Haverhill, MA 018301265452320
- James Goudie, M.D.Lowell, MA 018521740405224
- Heather Sylvia, RNBurlington, MA 018051558296475
Common questions
What is Johannah Kathryn Merrill, MD's NPI number?
Johannah Kathryn Merrill, MD's National Provider Identifier (NPI) is 1386098093, issued on Apr 19, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Johannah Kathryn Merrill, MD located?
The NPPES record lists a practice address at 1 General St, Lawrence, MA, 01841. Phone: (434) 981-9742. Providers update this record themselves, so call before visiting.
How can I verify Johannah Kathryn Merrill, MD's license?
NPPES lists Massachusetts license number 281944, 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 Johannah Kathryn Merrill, MD prescribe under Medicare Part D?
In 2024, Johannah Kathryn Merrill, MD had 160 Medicare Part D claims for 105 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. 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.