Marc Addison Callender, M.D.
Pediatrics Physician · Annapolis, MD
Marc Addison Callender, M.D. is a pediatrics physician with a practice address in Annapolis, Maryland, and NPI 1578736682, issued on Apr 9, 2008. Check the license (Maryland 21906, as entered in NPPES) on the Maryland Board of Physicians; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Marc Addison Callender
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 21906 MD
Self-reported in NPPES; status is on the state search - Practice location
- 2001 Medical Pkwy, Annapolis, MD 21401
- Phone
- (443) 481-6968
- Enumerated
- Apr 9, 2008
- Record last updated
- Dec 8, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (443) 481-6322
- Medicare enrollment
- Enrolled (PECOS I20250909000625); may accept Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 1,842 in Maryland → Look up another NPI →
Also registered at 2001 Medical Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marc Addison Callender in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license 21906Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Marc Addison Callender among 1,842 pediatrics physician records in Maryland
Marc Addison Callender, M.D. is one of 1,842 pediatrics physician records with a practice address in Maryland. 35% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2008, is newer than 60% of them.
- NPI issued2008 · 60% of these records are older, 36% newer
- In a Medicare fileNo · 35% of these records are
- In the CMS Doctors and Clinicians fileYes · 9% of these records are
- Graduated2008 · median 2008 among the 162 with a school on file
- Record last updated2013 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
56 pediatrics physician records list a practice address in Annapolis
They are 56 of the 3,629 NPPES records with a practice address in Annapolis, and 1,842 pediatrics physician records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,842 in Maryland → Every provider in Annapolis → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Ahmet Aybar, M.D.Annapolis, MD 214011831144849
- Michele Brenner, MDAnnapolis, MD 214011770571226
- Michael Clemmens, MDAnnapolis, MD 214011730177262
- Jeanne Defeo, MDAnnapolis, MD 214011851379390
- Craig Dewolfe, MDAnnapolis, MD 214011164410692
- Betina FranceschiniAnnapolis, MD 214011750334140
- Brian Kit, MDAnnapolis, MD 214011205814951
- Samuel Libber, M.D.Annapolis, MD 214011386685089
Common questions
What is Marc Addison Callender, M.D.'s NPI number?
Marc Addison Callender, M.D.'s National Provider Identifier (NPI) is 1578736682, issued on Apr 9, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Marc Addison Callender, M.D. located?
The NPPES record lists a practice address at 2001 Medical Pkwy, Annapolis, MD, 21401. Phone: (443) 481-6968. Providers update this record themselves, so call before visiting.
How can I verify Marc Addison Callender, M.D.'s license?
NPPES lists Maryland license number 21906, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.