Frederick Marius Jacobsen, MD
Sleep Medicine (Psychiatry & Neurology) Physician · Washington, DC
Frederick Marius Jacobsen, MD is a sleep medicine (psychiatry & neurology) physician with a practice address in Washington, District of Columbia, and NPI 1235256827, issued on Mar 26, 2007. Check the license (District of Columbia 14701, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Frederick Marius Jacobsen
- Credential
- MD
- Primary taxonomy
- Sleep Medicine (Psychiatry & Neurology) Physician 2084S0012X
- License number
- 14701 DC
Self-reported in NPPES; status is on the state search - Practice location
- 908 New Hampshire Ave NW Ste 700, Washington, DC 20037
- Phone
- (202) 234-1742
- Enumerated
- Mar 26, 2007
- Record last updated
- Aug 12, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
2 nearest sleep medicine (psychiatry & neurology) physician records → All 3 in District of Columbia → Look up another NPI →
Verify Frederick Marius Jacobsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license 14701Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% more Medicare Part D claims than the average sleep medicine (psychiatry & neurology) physician in 2024
1,252 Medicare Part D claims for 54 beneficiaries, against an average of 655 among the 377 providers of this specialty who prescribed in Part D.
Most prescribed
- Metformin Hcl Er69 claims
- Liothyronine Sodium65 claims
- Levothyroxine Sodium56 claims
- Lamotrigine54 claims
- Lithium Carbonate Er52 claims
- Zolpidem Tartrate48 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.
Sleep Medicine (Psychiatry & Neurology) Physician providers in District of Columbia
There are 3 sleep medicine (psychiatry & neurology) physician records in District of Columbia.
All 3 in District of Columbia → Every provider in Washington → Sleep Medicine (Psychiatry & Neurology) Physician nationwide →
The 2 sleep medicine (psychiatry & neurology) physician records with the nearest ZIP codes
- Kalpana Hari Hall, MDWashington, DC 200371366414609
- Lynn Kataria, MDWashington, DC 200071700037272
Common questions
What is Frederick Marius Jacobsen, MD's NPI number?
Frederick Marius Jacobsen, MD's National Provider Identifier (NPI) is 1235256827, issued on Mar 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Frederick Marius Jacobsen, MD located?
The NPPES record lists a practice address at 908 New Hampshire Ave NW Ste 700, Washington, DC, 20037. Phone: (202) 234-1742. Providers update this record themselves, so call before visiting.
How can I verify Frederick Marius Jacobsen, MD's license?
NPPES lists District of Columbia license number 14701, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Frederick Marius Jacobsen, MD prescribe under Medicare Part D?
In 2024, Frederick Marius Jacobsen, MD had 1,252 Medicare Part D claims for 54 beneficiaries; the average among sleep medicine (psychiatry & neurology) physician prescribers was 655. 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.