NPPES file of Aug 9, 2026

Santiago Andres Lozano Calderon, MD, PHD

Orthopaedic Surgery Physician · Boston, MA

Santiago Andres Lozano Calderon, MD, PHD is an orthopaedic surgery physician with a practice address in Boston, Massachusetts, and NPI 1538436209, issued on Nov 24, 2011. Check the license (Massachusetts 250247, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1538436209
Name
Santiago Andres Lozano Calderon
Credential
MD, PHD
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
250247 MA
Self-reported in NPPES; status is on the state search
Practice location
55 Fruit St, Boston, MA 02114
Phone
(617) 726-6823
Enumerated
Nov 24, 2011
Record last updated
Jun 5, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(617) 726-6823
Medicare enrollment
Enrolled (PECOS I20120820000495); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 55 Fruit St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Affan Aamir, MD, PHARMD, RPHStudent in an Organized Health Care Education/Training Program1821890377
  2. Matthew AbadirAnesthesiology Physician1699120550
  3. Taimur AbbasiInternal Medicine Physician1841673522
  4. Megan Abbott, MDAnesthesiology Physician1730839333
  5. Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
  6. Shadi Abdar Esfahani, MD, MPHDiagnostic Radiology Physician1497137590

Verify Santiago Andres Lozano Calderon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 250247
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

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95% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024

18 Medicare Part D claims for 13 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D.

  1. Santiago Lozano Calderon18
  2. Specialty average346

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.

Industry payments in 2024: $13,829.02

24 payments; by number, the most common kind was food and beverage; the largest payer was Onkos Surgical, Inc. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Santiago Lozano Calderon$13,829
  2. Specialty average$23,023

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Massachusetts General Physicians Organization IncBoston, MA
  2. The General Hospital CorporationBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Santiago Andres Lozano Calderon among 692 orthopaedic surgery physician records in Massachusetts

Santiago Andres Lozano Calderon, MD, PHD is one of 692 orthopaedic surgery physician records with a practice address in Massachusetts. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 66% of them.

  • NPI issued2011 · 66% of these records are older, 32% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2001 · median 2004 among the 441 with a school on file
  • Record last updated2013 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in Massachusetts

There are 692 orthopaedic surgery physician records in Massachusetts.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Maurice Albright, MDBoston, MA 021141194715904
  2. Peter Asnis, MDBoston, MA 021141770564577
  3. Arthur Boland, MDBoston, MA 021141013908219
  4. Andrew Freiberg, MDBoston, MA 021141144210956
  5. William Harris, MDBoston, MA 021141801887336
  6. James Herndon, MD MBABoston, MA 021141326029612
  7. Jesse Jupiter, MDBoston, MA 021141679564207
  8. David Lhowe, MDBoston, MA 021141326039975

Common questions

What is Santiago Andres Lozano Calderon, MD, PHD's NPI number?

Santiago Andres Lozano Calderon, MD, PHD's National Provider Identifier (NPI) is 1538436209, issued on Nov 24, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Santiago Andres Lozano Calderon, MD, PHD located?

The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 726-6823. Providers update this record themselves, so call before visiting.

How can I verify Santiago Andres Lozano Calderon, MD, PHD's license?

NPPES lists Massachusetts license number 250247, 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 Santiago Andres Lozano Calderon, MD, PHD prescribe under Medicare Part D?

In 2024, Santiago Andres Lozano Calderon, MD, PHD had 18 Medicare Part D claims for 13 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. 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.