Mark Nathaniel Nusbaum, PH.D.
Psychologist · Columbia, MD
Mark Nathaniel Nusbaum, PH.D. is a psychologist with a practice address in Columbia, Maryland, and NPI 1154340636, issued on Jul 18, 2006. Check the license (Maryland 2675, as entered in NPPES) with the Maryland board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark Nathaniel Nusbaum
- Credential
- PH.D.
- Primary taxonomy
- Psychologist 103T00000X
- License number
- 2675 MD
Self-reported in NPPES; status is on the state search - Practice location
- 9841 Broken Land Pkwy Ste 116, Columbia, MD 21046
- Phone
- (301) 490-0778
- Enumerated
- Jul 18, 2006
- Record last updated
- Jul 6, 2024
- Fax
- (410) 672-4011
- Medicare enrollment
- Enrolled (PECOS I20220921003205); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychologist records → All 1,183 in Maryland → Look up another NPI →
Also registered at 9841 Broken Land Pkwy Ste 116
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Maravi, LCSWCClinical Social Worker1679514699
Verify Mark Nathaniel Nusbaum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 2675Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark Nathaniel Nusbaum among 1,183 psychologist records in Maryland
Mark Nathaniel Nusbaum, PH.D. is one of 1,183 psychologist records with a practice address in Maryland. 8% 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 80% newer
- In a Medicare fileNo · 8% of these records are
- In the CMS Doctors and Clinicians fileYes · 14% of these records are
- Graduated1988 · median 1999 among the 167 with a school on file
- Record last updated2024 · 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 103T00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
61 psychologist records list a practice address in Columbia
They are 61 of the 6,690 NPPES records with a practice address in Columbia, and 1,183 psychologist records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,183 in Maryland → Every provider in Columbia → Psychologist nationwide →
The 8 psychologist records with the nearest ZIP codes
- Roy Boyd, PH.D.; PSYCHOLOGISTColumbia, MD 210461376735266
- Elizabeth Disney, PH.D.Columbia, MD 210461770505331
- Cynthia Kalodner, PH.D.Columbia, MD 210461356680805
- Helen Lann, M.D.Columbia, MD 210461801900469
- Samantha Marks, PSY.D.Columbia, MD 210461508292848
- Katherine Moore, PH.D.Columbia, MD 210461124401930
- Amy Paschane, PH.D.Columbia, MD 210461770545303
- Monica Petroski, PSY.D.Columbia, MD 210461700252608
Common questions
What is Mark Nathaniel Nusbaum, PH.D.'s NPI number?
Mark Nathaniel Nusbaum, PH.D.'s National Provider Identifier (NPI) is 1154340636, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Nathaniel Nusbaum, PH.D. located?
The NPPES record lists a practice address at 9841 Broken Land Pkwy Ste 116, Columbia, MD, 21046. Phone: (301) 490-0778. Providers update this record themselves, so call before visiting.
How can I verify Mark Nathaniel Nusbaum, PH.D.'s license?
NPPES lists Maryland license number 2675, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity 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. 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.