Dr. Marcelle Tharmarajah, MD
- Medicare services, 2024
- 112
- Medicare patients, 2024
- 124
- Part D claims, 2024
- 279
- Industry payments
- $256
- Affiliated sites
- 1
- Practice address
- 1 California St, San Francisco, CA 94111
- Practice phone
- Call (800) 997-6196
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Doctor On Demand Professionals P C
San Francisco, California
Find Dr. Tharmarajah'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. Marcelle Tharmarajah is a family medicine physician in San Francisco, California
Dr. Tharmarajah practices at Doctor On Demand Professionals P C in San Francisco, California.
Dr. Tharmarajah's NPI, 1811167042, was assigned on March 4, 2008. Dr. Tharmarajah holds Georgia license 61361.
- NPI
- 1811167042NPI Registry (opens in a new tab)
- NPI enumeration date
- March 4, 2008
- NPI status
- Active
- Practice phone
- (800) 997-6196
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Marcelle Tharmarajah practices at Doctor on Demand Professionals P C in San Francisco, California
Dr. Tharmarajah's primary practice is Doctor on Demand Professionals P C, at 1 California St, San Francisco, CA 94111 in San Francisco County. The practice phone is (800) 997-6196.
- Doctor on Demand Professionals P C1 California St, San Francisco, CA 94111 · San Francisco CountyPhone(800) 997-6196
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Marcelle Tharmarajah is affiliated with 2 sites of care and 2 medical groups
Dr. Tharmarajah's primary practice is Doctor On Demand Professionals P C in San Francisco, California. The medical group on file is Doctor on Demand. Dmand AI also links Dr. Tharmarajah to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Marcelle Tharmarajah's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tharmarajah practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Doctor On Demand Professionals P C | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marcelle Tharmarajah is one of 15,680 family medicine physicians in California
Family medicine is Dr. Tharmarajah's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dmand AI has Dr. Tharmarajah's licenses on file in 5 states: Georgia, Florida, Kentucky, Ohio and Tennessee.
Specialties and state licenses
- Family medicine, GeorgiaPrimary
- Adult medicine, Florida
- Kentucky license
- Ohio license
- Tennessee license
Family medicine physicians near Dr. Tharmarajah
Counts of family medicine 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. Marcelle Tharmarajah billed Medicare for 112 services in 2024
CMS data shows 112 Medicare services from Dr. Tharmarajah across 2 procedure codes in 2024, all of them office visits, for 124 Medicare patients. Medicare paid $5,680 for them. Every service was in an office.
Dr. Tharmarajah's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1132024: 1121%
Dr. Tharmarajah compared with the California median for family medicine physicians, 2024
- Dr. Tharmarajah
- California median
- Medicare services
- 112vs 24654% below
- Medicare patients
- 124vs 1185% above
- Part D claims
- 115vs 83386% below
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Tharmarajah's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marcelle Tharmarajah treated 124 Medicare patients in 2024, average age 64
CMS counts 124 Medicare patients who saw Dr. Tharmarajah in 2024. The largest group is 65 to 74, with 61 patients. 64% of them have high cholesterol, and 56% have high blood pressure. 23% are also on Medicaid. Their average risk score is 0.82, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Tharmarajah's median patient age at 56, with 71% women.
Dr. Tharmarajah's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Tharmarajah's Medicare patients by sex, 2024
- Women9577%
- Men2923%
Chronic conditions among Dr. Tharmarajah's Medicare patients, 2024
- High cholesterol64%
- High blood pressure56%
- Arthritis44%
- Anxiety43%
- Mood disorders42%
- Depression36%
- Asthma21%
- COPD16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tharmarajah's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women71%
- Men29%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Marcelle Tharmarajah wrote 279 Medicare Part D claims in 2024
In 2024, Dr. Tharmarajah wrote 279 Medicare Part D claims for 159 patients. 85% of them were for generic drugs. CMS names the drug for 115 of them, across 7 drugs with 11 or more claims each, at $854 in total drug cost. In 2023, CMS named 96 claims across 6 drugs.
Dr. Tharmarajah's Part D claims by kind of drug, 2024
- Generic238 claims85%
- Brand-name and other41 claims15%
Dr. Tharmarajah'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. Tharmarajah's Part D claims, 2024
- Antibiotics34%94 of 279 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: 962024: 11520%
Drugs named by CMS: 7 in 2024, 6 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. Marcelle Tharmarajah received $256 in industry payments from 2016 to 2017
CMS Open Payments shows 17 general payments to Dr. Tharmarajah from 5 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $94.
General payments to Dr. Tharmarajah by program year, 2016 to 2017
Companies that paid Dr. Tharmarajah the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Marcelle Tharmarajah'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 Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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. Marcelle Tharmarajah
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. Marcelle Tharmarajah's NPI number?
Dr. Marcelle Tharmarajah's NPI number is 1811167042. It was assigned on March 4, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Marcelle Tharmarajah?
Dr. Marcelle Tharmarajah is a family medicine physician in San Francisco, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Marcelle Tharmarajah practice?
Dr. Tharmarajah practices at 1 California St, San Francisco, CA 94111. Dr. Tharmarajah's primary practice is Doctor On Demand Professionals P C in San Francisco, California. Dmand AI also links Dr. Tharmarajah to 1 group practice or clinic and 1 medical group.
What is Dr. Marcelle Tharmarajah's office phone number?
The practice phone on file for Dr. Tharmarajah is (800) 997-6196.
What is Dr. Marcelle Tharmarajah's medical license number?
Dr. Tharmarajah holds Georgia license 61361, one of the licenses on file in 5 states.
Which states has Dr. Marcelle Tharmarajah been licensed in?
Dmand AI has state licenses on file for Dr. Tharmarajah in Georgia, Florida, Kentucky, Ohio and Tennessee.
What medical group is Dr. Marcelle Tharmarajah part of?
Dr. Tharmarajah is linked to Doctor on Demand. Dmand AI links Dr. Tharmarajah to 1 more medical group.
Does Dr. Marcelle Tharmarajah accept Medicare?
Yes. CMS data shows Dr. Tharmarajah billed Medicare for 112 services in 2024.
How many Medicare patients does Dr. Marcelle Tharmarajah see?
CMS counts 124 Medicare patients who saw Dr. Tharmarajah in 2024, with an average age of 64.
What services does Dr. Marcelle Tharmarajah bill to Medicare?
In 2024, Dr. Tharmarajah's most billed Medicare services were office visit, established patient (99213) and office visit, new patient (99203).
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What drugs does Dr. Marcelle Tharmarajah prescribe most?
In 2024 Medicare Part D data, Dr. Tharmarajah's most prescribed drugs by claims were Amoxicillin-Clavulanate Potass, Albuterol Sulfate Hfa and Doxycycline Hyclate.
Has Dr. Marcelle Tharmarajah received payments from drug or device companies?
CMS Open Payments shows $256 in general payments to Dr. Tharmarajah from 5 companies from 2016 to 2017. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Marcelle Tharmarajah been practicing?
Dr. Tharmarajah graduated from medical school in 2005, 21 years ago.
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