Dr. Louis Littman, MD, PhD
- Part D claims, 2024
- 332
- Industry payments
- $939
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 3400 Spruce St, Philadelphia, PA 19104
- Practice phone
- Call (215) 349-5150
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hospital of the University of Pennsylvania
Philadelphia, Pennsylvania
Find Dr. Littman's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Louis Littman is a psychiatrist in Philadelphia, Pennsylvania
Dr. Littman practices at Hospital of the University of Pennsylvania in Philadelphia, Pennsylvania.
Dr. Littman's NPI, 1790906733, was assigned on May 1, 2007. Dr. Littman holds Pennsylvania license MD417898.
- NPI
- 1790906733NPI Registry (opens in a new tab)
- NPI enumeration date
- May 1, 2007
- NPI status
- Active
- Practice phone
- (215) 349-5150
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Louis Littman practices at Hospital of the University of Pennsylvania in Philadelphia, Pennsylvania
Dr. Littman's primary practice is Hospital of the University of Pennsylvania, at 3400 Spruce St, Philadelphia, PA 19104 in Philadelphia County. The practice phone is (215) 349-5150.
- Hospital of the University of Pennsylvania3400 Spruce St, Philadelphia, PA 19104 · Philadelphia CountyPhone(215) 349-5150
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Louis Littman is affiliated with 1 site of care
Dr. Littman's primary practice is Hospital of the University of Pennsylvania in Philadelphia, Pennsylvania.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Louis Littman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Littman practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hospital of the University of Pennsylvania | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Louis Littman is one of 1,873 psychiatrists in Pennsylvania
Psychiatry is Dr. Littman's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Littman is licensed in Pennsylvania.
Specialties and state licenses
- Psychiatry, PennsylvaniaPrimary
Psychiatrists near Dr. Littman
Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Louis Littman's patients have a median age of 31
Across all payers, Dmand AI patient panel data puts Dr. Littman's median patient age at 31, with 61% women.
Dr. Littman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 31
Patient panel by sex, all payers
- Women61%
- Men35%
Source: Dmand AI Patient Panel Data
Dr. Louis Littman wrote 332 Medicare Part D claims in 2024
In 2024, Dr. Littman wrote 332 Medicare Part D claims for 26 patients. 100% of them were for generic drugs. CMS names the drug for 236 of them, across 12 drugs with 11 or more claims each, at $4,605 in total drug cost. In 2023, CMS named 226 claims across 11 drugs.
Dr. Littman's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Littman's Part D claims, 2024
- Antipsychotics, patients 65 and over6%19 of 332 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2262024: 2364%
Drugs named by CMS: 12 in 2024, 11 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Louis Littman received $939 in industry payments from 2016 to 2024
CMS Open Payments shows 26 general payments to Dr. Littman from 10 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 94% of the total. Allergan Inc. paid the most, $418.
General payments to Dr. Littman by program year, 2016 to 2024
General payments to Dr. Littman by kind, 2016 to 2024
- Food and beverage$87994%
- Education$606%
Companies that paid Dr. Littman the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Louis Littman's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Louis Littman
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Louis Littman's NPI number?
Dr. Louis Littman's NPI number is 1790906733. It was assigned on May 1, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Louis Littman?
Dr. Louis Littman is a psychiatrist in Philadelphia, Pennsylvania. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Louis Littman practice?
Dr. Littman practices at 3400 Spruce St, Philadelphia, PA 19104. Dr. Littman's primary practice is Hospital of the University of Pennsylvania in Philadelphia, Pennsylvania.
What is Dr. Louis Littman's office phone number?
The practice phone on file for Dr. Littman is (215) 349-5150.
What is Dr. Louis Littman's medical license number?
Dr. Littman holds Pennsylvania license MD417898.
What drugs does Dr. Louis Littman prescribe most?
In 2024 Medicare Part D data, Dr. Littman's most prescribed drugs by claims were Clonazepam, Propranolol HCl and Lorazepam.
Has Dr. Louis Littman received payments from drug or device companies?
CMS Open Payments shows $939 in general payments to Dr. Littman from 10 companies from 2016 to 2024. The largest total came from Allergan Inc.
How long has Dr. Louis Littman been practicing?
Dr. Littman's NPI was assigned in 2007.
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