Mark F. Losordo, MD
Emergency Medicine Physician · Falmouth, MA
Mark F. Losordo, MD is an emergency medicine physician with a practice address in Falmouth, Massachusetts, and NPI 1285600569, issued on Feb 27, 2006. Check the license (Massachusetts 73078, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark F. Losordo
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 73078 MA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Ter Haun Drive, Falmouth, MA 02540
- Phone
- (508) 457-3929
- Enumerated
- Feb 27, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (508) 457-3839
- Medicare enrollment
- Enrolled (PECOS I20050411001111); accepts Medicare assignment
- Medical or professional school
- University Of Massachusetts Medical School, 1978
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,829 in Massachusetts → Look up another NPI →
Also registered at 100 Ter Haun Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Herbert Gray, MDEmergency Medicine Physician1003882846
- Michael Mendelsohn, MDEmergency Medicine Physician1689640302
- Stephanie Tudor, PAPhysician Assistant1922073733
Verify Mark F. Losordo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 73078Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% fewer Medicare Part D claims than the average emergency medicine physician in 2024
185 Medicare Part D claims for 152 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone30 claims
- Doxycycline Hyclate22 claims
- Amoxicillin-Clavulanate Potass21 claims
- Cephalexin13 claims
- Cefuroxime12 claims
- Azithromycin11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 97 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Physicians OF Falmouth HospitalFalmouth, MA
- Urgi Center Medical GroupTeaticket, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark F. Losordo among 1,829 emergency medicine physician records in Massachusetts
Mark F. Losordo, MD is one of 1,829 emergency medicine physician records with a practice address in Massachusetts. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1978 · median 2011 among the 1,200 with a school on file
- Record last updated2026 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 emergency medicine physician records list a practice address in Falmouth
They are 15 of the 550 NPPES records with a practice address in Falmouth, and 1,829 emergency medicine physician records in Massachusetts.
All 1,829 in Massachusetts → Every provider in Falmouth → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Ryan Bemis, M.D.Falmouth, MA 025401639137235
- Janine Connors, MDFalmouth, MA 025401851367247
- Robert Davis, MDFalmouth, MA 025401760458160
- John Doyle, MDFalmouth, MA 025401679549075
- Mark Durfee, MDFalmouth, MA 025401104892595
- Herbert Gray, MDFalmouth, MA 025401003882846
- Michael Mendelsohn, MDFalmouth, MA 025401689640302
- Michael O'Connell, D.OFalmouth, MA 025401093032427
Common questions
What is Mark F. Losordo, MD's NPI number?
Mark F. Losordo, MD's National Provider Identifier (NPI) is 1285600569, issued on Feb 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark F. Losordo, MD located?
The NPPES record lists a practice address at 100 Ter Haun Drive, Falmouth, MA, 02540. Phone: (508) 457-3929. Providers update this record themselves, so call before visiting.
How can I verify Mark F. Losordo, MD's license?
NPPES lists Massachusetts license number 73078, 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 Mark F. Losordo, MD prescribe under Medicare Part D?
In 2024, Mark F. Losordo, MD had 185 Medicare Part D claims for 152 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Mark F. Losordo, MD's MIPS final score?
The 2023 MIPS final score is 97 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.