NPPES file of Aug 9, 2026

Alexander Paul Lang, MD

Psychiatry Physician · Oakland, CA

Alexander Paul Lang, MD is a psychiatry physician with a practice address in Oakland, California, and NPI 1124681358, issued on Apr 14, 2019. Check the license (California 188223, as entered in NPPES) on the Medical Board of California; 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
1124681358
Name
Alexander Paul Lang
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
188223 CA
R77282 AZ
Self-reported in NPPES; status is on the state search
Practice location
3900 Broadway, Oakland, CA 94611
Phone
(510) 752-1075
Enumerated
Apr 14, 2019
Record last updated
May 7, 2026
Medicaid ID
R77282 AZ
Medicare enrollment
Enrolled (PECOS I20231218001135); accepts Medicare assignment
Medical or professional school
Wright State University Boonshoft School Of Medicine, 2019
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 3900 Broadway

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

  1. Raymond Carraway, LCSWClinical Social Worker1790975175
  2. Iat Chio ChanClinical Psychologist1598523375
  3. Margaret Chao, PH.D.Clinical Psychologist1629453840
  4. Gayle Coleman, L.C.S.W.Clinical Social Worker1861558066
  5. Elizabeth Colt, LCSWClinical Social Worker1609912534
  6. Mary De Luna, LCSWClinical Social Worker1326198722

Verify Alexander Paul Lang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 188223
    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 California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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72% fewer Medicare Part D claims than the average psychiatry physician in 2024

277 Medicare Part D claims for 84 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Alexander Lang277
  2. Specialty average1,000

Most prescribed

  1. Trazodone Hcl31 claims
  2. Escitalopram Oxalate29 claims
  3. Lorazepam23 claims
  4. Mirtazapine20 claims
  5. Duloxetine Hcl16 claims
  6. 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

  1. Permanente Medical Group IncOakland, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Alexander Paul Lang among 8,673 psychiatry physician records in California

Alexander Paul Lang, MD is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 85% of them.

  • NPI issued2019 · 85% of these records are older, 13% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2019 · median 2005 among the 3,295 with a school on file
  • Record last updated2026 · 54% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in California

There are 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Sharon Abramowitz, M.D.Oakland, CA 946111003834094
  2. David Atkins, MDOakland, CA 946111114005816
  3. Carol Cohen, MDOakland, CA 946111467530238
  4. Kennedy Cosgrove, MDOakland, CA 946111659486561
  5. Leslie Fuchs, M.D.Oakland, CA 946111346271947
  6. Thomas Gonda, MDOakland, CA 946111033297833
  7. John Hiatt, MDOakland, CA 946111780693093
  8. Xiaoyu Huang, M.D.Oakland, CA 946111841388428

Common questions

What is Alexander Paul Lang, MD's NPI number?

Alexander Paul Lang, MD's National Provider Identifier (NPI) is 1124681358, issued on Apr 14, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Paul Lang, MD located?

The NPPES record lists a practice address at 3900 Broadway, Oakland, CA, 94611. Phone: (510) 752-1075. Providers update this record themselves, so call before visiting.

How can I verify Alexander Paul Lang, MD's license?

NPPES lists California license number 188223, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Alexander Paul Lang, MD prescribe under Medicare Part D?

In 2024, Alexander Paul Lang, MD had 277 Medicare Part D claims for 84 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.