NPPES file of Aug 9, 2026

Xiu-Di Fan, M. D.

Psychiatry Physician · Columbia, MD

Xiu-Di Fan, M. D. is a psychiatry physician with a practice address in Columbia, Maryland, and NPI 1437169232, issued on Aug 8, 2006. Check the license (Maryland D0059727, as entered in NPPES) on the Maryland Board of Physicians; 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
1437169232
Name
Xiu-Di Fan
Credential
M. D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
D0059727 MD
Self-reported in NPPES; status is on the state search
Practice location
5457 Twin Knolls RD Ste 300, Columbia, MD 21045
Phone
(443) 955-8683
Enumerated
Aug 8, 2006
Record last updated
Jun 11, 2024
Fax
(410) 531-5085
Medicare enrollment
Enrolled (PECOS I20070815000542); 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 5457 Twin Knolls RD Ste 300

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

  1. Laurette Abunaw, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1659968642
  2. Funke AdedejiBehavior Technician1174419675
  3. Mariel AkinboyePsychiatric/Mental Health Nurse Practitioner1881547826
  4. Coleen Alexander, LGPCProfessional Counselor1477345429
  5. Anil BakirBehavior Technician1598605206
  6. Harry ChaussAcupuncturist1760082713

Verify Xiu-Di Fan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0059727
    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 Maryland license search

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76% more Medicare Part D claims than the average psychiatry physician in 2024

1,757 Medicare Part D claims for 83 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. Xiu-Di Fan1,757
  2. Specialty average1,000

Most prescribed

  1. Clonazepam150 claims
  2. Venlafaxine Hcl Er114 claims
  3. Escitalopram Oxalate98 claims
  4. Trazodone Hcl98 claims
  5. Bupropion Xl97 claims
  6. Quetiapine Fumarate90 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.

Xiu-Di Fan among 1,451 psychiatry physician records in Maryland

Xiu-Di Fan, M. D. 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileYes · 36% of these records are
  • Graduated1982 · median 2000 among the 525 with a school on file
  • Record last updated2024 · 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).

47 psychiatry physician records list a practice address in Columbia

They are 47 of the 6,690 NPPES records with a practice address in Columbia, and 1,451 psychiatry physician records in Maryland.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Riffat Ashai, MDColumbia, MD 210451003857038
  2. Brett Greenberger, M.D.Columbia, MD 210451073591558
  3. Daniel Kim, M.DColumbia, MD 210451992742910
  4. Anandraj Mattai, MDColumbia, MD 210451407070881
  5. Karen Meckler, M.D.Columbia, MD 210451396800959
  6. Altaf Merchant, MDColumbia, MD 210451912027707
  7. Michelle Pasternack, CCSW CColumbia, MD 210451649217993
  8. Ariel Vitali, MDColumbia, MD 210451548452147

Common questions

What is Xiu-Di Fan, M. D.'s NPI number?

Xiu-Di Fan, M. D.'s National Provider Identifier (NPI) is 1437169232, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Xiu-Di Fan, M. D. located?

The NPPES record lists a practice address at 5457 Twin Knolls RD Ste 300, Columbia, MD, 21045. Phone: (443) 955-8683. Providers update this record themselves, so call before visiting.

How can I verify Xiu-Di Fan, M. D.'s license?

NPPES lists Maryland license number D0059727, 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 Xiu-Di Fan, M. D. prescribe under Medicare Part D?

In 2024, Xiu-Di Fan, M. D. had 1,757 Medicare Part D claims for 83 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.