Louis Littman, M.D., PH. D.
Psychiatry Physician · Philadelphia, PA
Louis Littman, M.D., PH. D. is a psychiatry physician with a practice address in Philadelphia, Pennsylvania, and NPI 1790906733, issued on May 1, 2007. Check the license (Pennsylvania MD417898, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Louis Littman
- Credential
- M.D., PH. D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD417898 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1420 Walnut Street, Philadelphia, PA 19102
- Phone
- (215) 735-4888
- Enumerated
- May 1, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (215) 735-2020
- Entity
- Type 1 · individual
Verify Louis Littman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD417898Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average psychiatry physician in 2024
332 Medicare Part D claims for 26 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.
Most prescribed
- Clonazepam48 claims
- Propranolol Hcl47 claims
- Lorazepam17 claims
- Bupropion Xl16 claims
- Sertraline Hcl16 claims
- Dextroamphetamine-Amphetamine15 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.
Industry payments in 2024: $130.31
2 payments; by number, the most common kind was food and beverage; the largest payer was Iti, Inc. (d/b/a Intra-Cellular Therapies, Inc.). The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
727 psychiatry physician records list a practice address in Philadelphia
They are 727 of the 42,849 NPPES records with a practice address in Philadelphia, and 2,662 psychiatry physician records in Pennsylvania.
All 727 in Philadelphia → All 2,662 in Pennsylvania → Every provider in Philadelphia →
Other psychiatry physician records in Pennsylvania
- Raja Abbas, M.D.Lehighton, PA1306057294
- Saleha Abbas, M.D.Upland, PA1144283052
- David Abel, MDDoylestown, PA1881637163
- Rolf Abel, MDWilkes Barre, PA1427048917
- Kian AbolhodaPhiladelphia, PA1013844885
- Dara Abraham, D.OPhiladelphia, PA1316109549
- George Abraham, PCLafayette Hill, PA1679552368
- John Abulu, MBBS, MDPhiladelphia, PA1700052172
- Thalia Acosta, MDPittsburgh, PA1790909224
- Marilyn Adam, M.D.York, PA1548698103
Common questions
What is Louis Littman, M.D., PH. D.'s NPI number?
Louis Littman, M.D., PH. D.'s National Provider Identifier (NPI) is 1790906733, issued on May 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Louis Littman, M.D., PH. D. located?
The NPPES record lists a practice address at 1420 Walnut Street, Philadelphia, PA, 19102. Phone: (215) 735-4888. Providers update this record themselves, so call before visiting.
How can I verify Louis Littman, M.D., PH. D.'s license?
NPPES lists Pennsylvania license number MD417898, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Louis Littman, M.D., PH. D. prescribe under Medicare Part D?
In 2024, Louis Littman, M.D., PH. D. had 332 Medicare Part D claims for 26 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.