Derrick Anthony Manzlak, M.D.
Sleep Medicine (Psychiatry & Neurology) Physician · Anchorage, AK
Derrick Anthony Manzlak, M.D. is a sleep medicine (psychiatry & neurology) physician with a practice address in Anchorage, Alaska, and NPI 1235429457, issued on Apr 8, 2011. Check the license on the Alaska State Medical Board; the Medicare figures below come from public CMS files.
- Name
- Derrick Anthony Manzlak
- Credential
- M.D.
- Primary taxonomy
- Sleep Medicine (Psychiatry & Neurology) Physician 2084S0012X
- License numbers
- 0101262628 VA
261728 MA
Self-reported in NPPES; status is on the state search - Practice location
- 3976 University Lake Dr Ste 100, Anchorage, AK 99508
- Phone
- (907) 729-8141
- Enumerated
- Apr 8, 2011
- Record last updated
- Oct 13, 2022
- Fax
- (907) 729-3998
- Medicaid ID
- 1235429457 VA
- Medicare enrollment
- Enrolled (PECOS I20200316000223); accepts Medicare assignment
- Medical or professional school
- Eastern Virginia Medical School, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
1 nearest sleep medicine (psychiatry & neurology) physician record → All 2 in Alaska → Look up another NPI →
Verify Derrick Anthony Manzlak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersAlaska State Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average sleep medicine (psychiatry & neurology) physician in 2024
42 Medicare Part D claims for 18 beneficiaries, against an average of 655 among the 377 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Zolpidem Tartrate16 claims
- Clonazepam13 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.
Bills Medicare through one group practice
- Alaska Native Tribal Health ConsortiumAnchorage, AK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sleep Medicine (Psychiatry & Neurology) Physician providers in Alaska
There are 2 sleep medicine (psychiatry & neurology) physician records in Alaska.
All 2 in Alaska → Every provider in Anchorage → Sleep Medicine (Psychiatry & Neurology) Physician nationwide →
The 1 sleep medicine (psychiatry & neurology) physician record with the nearest ZIP codes
- Christina Darby, M.D.Anchorage, AK 995081225348592
Common questions
What is Derrick Anthony Manzlak, M.D.'s NPI number?
Derrick Anthony Manzlak, M.D.'s National Provider Identifier (NPI) is 1235429457, issued on Apr 8, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Derrick Anthony Manzlak, M.D. located?
The NPPES record lists a practice address at 3976 University Lake Dr Ste 100, Anchorage, AK, 99508. Phone: (907) 729-8141. Providers update this record themselves, so call before visiting.
How can I verify Derrick Anthony Manzlak, M.D.'s license?
Search the Alaska State Medical Board at https://www.commerce.alaska.gov/web/cbpl/ProfessionalLicensing/StateMedicalBoard.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Derrick Anthony Manzlak, M.D. prescribe under Medicare Part D?
In 2024, Derrick Anthony Manzlak, M.D. had 42 Medicare Part D claims for 18 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.