Alden Littlewood
Psychiatry Physician · Baltimore, MD
Alden Littlewood is a psychiatry physician with a practice address in Baltimore, Maryland, and NPI 1083000665, issued on Apr 10, 2015. Check the license (Maryland D0087351, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Alden Littlewood
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- D0087351 MD
306346 LA
Self-reported in NPPES; status is on the state search - Practice location
- 827 Linden Ave, Baltimore, MD 21201
- Phone
- (410) 225-8000
- Enumerated
- Apr 10, 2015
- Record last updated
- Mar 28, 2023
- Medicare enrollment
- Enrolled (PECOS I20210820000669); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 2015
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,451 in Maryland → Look up another NPI →
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Verify Alden Littlewood in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0087351Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average psychiatry physician in 2024
51 Medicare Part D claims for 13 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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): 100 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 one group practice
- University OF Maryland Psychiatry Associates PABaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alden Littlewood among 1,451 psychiatry physician records in Maryland
Alden Littlewood is one of 1,451 psychiatry physician records with a practice address in Maryland. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 82% of them.
- NPI issued2015 · 82% of these records are older, 16% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileYes · 36% of these records are
- Graduated2015 · median 2000 among the 525 with a school on file
- Record last updated2023 · 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 2084P0800X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
497 psychiatry physician records list a practice address in Baltimore
They are 497 of the 35,183 NPPES records with a practice address in Baltimore, and 1,451 psychiatry physician records in Maryland.
All 1,451 in Maryland → Every provider in Baltimore → Psychiatry Physician nationwide →
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Common questions
What is Alden Littlewood's NPI number?
Alden Littlewood's National Provider Identifier (NPI) is 1083000665, issued on Apr 10, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Alden Littlewood located?
The NPPES record lists a practice address at 827 Linden Ave, Baltimore, MD, 21201. Phone: (410) 225-8000. Providers update this record themselves, so call before visiting.
How can I verify Alden Littlewood's license?
NPPES lists Maryland license number D0087351, 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.
How much does Alden Littlewood prescribe under Medicare Part D?
In 2024, Alden Littlewood had 51 Medicare Part D claims for 13 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
What is Alden Littlewood's MIPS final score?
The 2023 MIPS final score is 100 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.