Dr. Frederick Nathan Thomas, MD
- Part D claims, 2024
- 3,991
- Industry payments
- $394
- Affiliated sites
- 1
- Medical group
- 1
- Insurance carriers
- 4
- Practice address
- 2614 S Grand Ave, Los Angeles, CA 90007
- Practice phone
- Call (909) 381-0803
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
H Street Clinic
Los Angeles, California
Find Dr. Thomas' 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. Frederick Nathan Thomas is a general practice physician in Los Angeles, California
Dr. Thomas practices at H Street Clinic in Los Angeles, California.
Dr. Thomas' NPI, 1346280401, was assigned on June 7, 2006. Dr. Thomas graduated from UCSF School of Medicine in 1978. Dr. Thomas holds California license G 40388.
- NPI
- 1346280401NPI Registry (opens in a new tab)
- NPI enumeration date
- June 7, 2006
- NPI status
- Active
- Practice phone
- (909) 381-0803
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Frederick Nathan Thomas practices at H Street Clinic in Los Angeles, California
Dr. Thomas' primary practice is H Street Clinic, at 2614 S Grand Ave, Los Angeles, CA 90007 in Los Angeles County. The practice phone is (909) 381-0803.
- H Street Clinic2614 S Grand Ave, Los Angeles, CA 90007 · Los Angeles CountyPhone(909) 381-0803
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Frederick Nathan Thomas is affiliated with 2 sites of care and 1 medical group
Dr. Thomas' primary practice is H Street Clinic in Los Angeles, California. The medical group on file is Central Neighborhood Health Foundation (CNHF), H Street Clinic. Dmand AI also links Dr. Thomas to 1 more community health center, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Frederick Nathan Thomas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thomas practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| H Street Clinic | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Frederick Nathan Thomas is one of 1,526 general practice physicians in California
General practice is Dr. Thomas' primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Thomas is licensed in California.
Specialties and state licenses
- General practice, CaliforniaPrimary
Clinical focus
Dmand AI lists aneurysm, arthritis, chronic diabetes, chronic embolism thrombosis, chronic hypertension, contact dermatitis, diabetic emergency and high cholesterol among the conditions Dr. Thomas treats.
General practice physicians near Dr. Thomas
Counts of general practice physicians 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. Frederick Nathan Thomas' patients have a median age of 54
Across all payers, Dmand AI patient panel data puts Dr. Thomas' median patient age at 54, with 48% women.
Dr. Thomas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women48%
- Men52%
Source: Dmand AI Patient Panel Data
Dr. Frederick Nathan Thomas wrote 3,991 Medicare Part D claims in 2024
In 2024, Dr. Thomas wrote 3,991 Medicare Part D claims for 173 patients. 79% of them were for generic drugs. CMS names the drug for 3,494 of them, across 66 drugs with 11 or more claims each, at $395,772 in total drug cost. In 2023, CMS named 3,750 claims across 74 drugs.
Dr. Thomas' Part D claims by kind of drug, 2024
- Generic3,136 claims79%
- Brand-name760 claims19%
- Other95 claims2%
Dr. Thomas' 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. Thomas' Part D claims, 2024
- Antibiotics1%42 of 3,991 claims
- Antipsychotics, patients 65 and over0%12 of 3,991 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: 3,7502024: 3,4947%
Drugs named by CMS: 66 in 2024, 74 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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Frederick Nathan Thomas received $394 in industry payments from 2016 to 2025
CMS Open Payments shows 17 general payments to Dr. Thomas from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Sanofi and Genzyme US Companies paid the most, $163.
General payments to Dr. Thomas by program year, 2016 to 2025
General payments to Dr. Thomas by kind, 2016 to 2025
- Food and beverage$39099%
- Education$51%
Companies that paid Dr. Thomas the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Frederick Nathan Thomas has 1 award and honors on record
Dmand AI lists 1 award for Dr. Thomas, most recently CMS Stage 1 EHR in 2011.
Awards and honors for Dr. Thomas
- 2011
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Frederick Nathan Thomas graduated from UCSF School of Medicine
Dr. Thomas graduated from UCSF School of Medicine in 1978.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Frederick Nathan Thomas accepts plans from 4 insurance carriers
Dr. Thomas is in network with 4 carriers, including Aetna, LA Care and Molina. HMO plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Aetna
- LA Care
- Molina
- Humana
Plan types Dr. Thomas accepts, by number of carriers
- HMO4
- Medicare3
- EPO1
- Medicaid1
- POS1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Frederick Nathan Thomas'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 DataDmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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. Frederick Nathan Thomas
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. Frederick Nathan Thomas' NPI number?
Dr. Frederick Nathan Thomas' NPI number is 1346280401. It was assigned on June 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Frederick Nathan Thomas?
Dr. Frederick Nathan Thomas is a general practice physician in Los Angeles, California. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Frederick Nathan Thomas practice?
Dr. Thomas practices at 2614 S Grand Ave, Los Angeles, CA 90007. Dr. Thomas' primary practice is H Street Clinic in Los Angeles, California. Dmand AI also links Dr. Thomas to 1 community health center.
What is Dr. Frederick Nathan Thomas' office phone number?
The practice phone on file for Dr. Thomas is (909) 381-0803.
What is Dr. Frederick Nathan Thomas' medical license number?
Dr. Thomas holds California license G 40388.
What medical group is Dr. Frederick Nathan Thomas part of?
Dr. Thomas is linked to Central Neighborhood Health Foundation (CNHF), H Street Clinic.
Where did Dr. Frederick Nathan Thomas go to medical school?
Dr. Thomas graduated from UCSF School of Medicine in 1978.
What drugs does Dr. Frederick Nathan Thomas prescribe most?
In 2024 Medicare Part D data, Dr. Thomas' most prescribed drugs by claims were Atorvastatin Calcium, Metformin HCl and Amlodipine Besylate.
Has Dr. Frederick Nathan Thomas received payments from drug or device companies?
CMS Open Payments shows $394 in general payments to Dr. Thomas from 6 companies from 2016 to 2025. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Frederick Nathan Thomas been practicing?
Dr. Thomas graduated from medical school in 1978, 48 years ago.
What insurance does Dr. Frederick Nathan Thomas accept?
Dr. Thomas is in network with 4 carriers, including Aetna, LA Care and Molina. HMO plans come from the most carriers, 4. Check the plan with the practice before a visit.
Selling to general practice practices?
See general practice physicians in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card