Dr. Tina Nhatthi Tonnu, MD
- Part D claims, 2024
- 1,288
- Industry payments
- $25
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 901 Nevin Ave, Richmond, CA 94801
- Practice phone
- Call (510) 307-1555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Richmond Medical Center
Richmond, California
Find Dr. Tonnu'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. Tina Nhatthi Tonnu is a psychiatrist in Richmond, California
Dr. Tonnu practices at Richmond Medical Center in Richmond, California.
Dr. Tonnu's NPI, 1790759827, was assigned on February 15, 2006. Dr. Tonnu holds California license A88767.
- NPI
- 1790759827NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4385704022
- NPI enumeration date
- February 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 307-1555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Tina Nhatthi Tonnu practices at Richmond Medical Center in Richmond, California
Dr. Tonnu's primary practice is Richmond Medical Center, at 901 Nevin Ave, Richmond, CA 94801 in Contra Costa County. The practice phone is (510) 307-1555.
- Richmond Medical Center901 Nevin Ave, Richmond, CA 94801 · Contra Costa CountyPhone(510) 307-1555
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Tina Nhatthi Tonnu is affiliated with 2 sites of care and 1 medical group
Dr. Tonnu's primary practice is Richmond Medical Center in Richmond, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Tonnu to 1 more group practice or clinic, 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. Tina Nhatthi Tonnu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tonnu practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Richmond Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Tina Nhatthi Tonnu is one of 6,803 psychiatrists in California
Psychiatry is Dr. Tonnu's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Tonnu is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Psychiatrists near Dr. Tonnu
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. Tina Nhatthi Tonnu's patients have a median age of 40
Across all payers, Dmand AI patient panel data puts Dr. Tonnu's median patient age at 40, with 72% women.
Dr. Tonnu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women72%
- Men28%
Source: Dmand AI Patient Panel Data
Dr. Tina Nhatthi Tonnu wrote 1,288 Medicare Part D claims in 2024
In 2024, Dr. Tonnu wrote 1,288 Medicare Part D claims for 208 patients. 96% of them were for generic drugs. CMS names the drug for 1,161 of them, across 29 drugs with 11 or more claims each, at $56,518 in total drug cost. In 2023, CMS named 1,228 claims across 30 drugs.
Dr. Tonnu's Part D claims by kind of drug, 2024
- Generic1,235 claims96%
- Brand-name53 claims4%
Dr. Tonnu'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. Tonnu's Part D claims, 2024
- Antipsychotics, patients 65 and over12%155 of 1,288 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: 1,2282024: 1,1615%
Drugs named by CMS: 29 in 2024, 30 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
How Dr. Tina Nhatthi Tonnu takes part in Medicare
Dr. Tonnu accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Tina Nhatthi Tonnu received $25 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Tonnu from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $25.
Companies that paid Dr. Tonnu the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Tina Nhatthi Tonnu'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 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Tina Nhatthi Tonnu
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. Tina Nhatthi Tonnu's NPI number?
Dr. Tina Nhatthi Tonnu's NPI number is 1790759827. It was assigned on February 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Tina Nhatthi Tonnu?
Dr. Tina Nhatthi Tonnu is a psychiatrist in Richmond, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Tina Nhatthi Tonnu practice?
Dr. Tonnu practices at 901 Nevin Ave, Richmond, CA 94801. Dr. Tonnu's primary practice is Richmond Medical Center in Richmond, California. Dmand AI also links Dr. Tonnu to 1 group practice or clinic.
What is Dr. Tina Nhatthi Tonnu's office phone number?
The practice phone on file for Dr. Tonnu is (510) 307-1555.
What is Dr. Tina Nhatthi Tonnu's medical license number?
Dr. Tonnu holds California license A88767.
What medical group is Dr. Tina Nhatthi Tonnu part of?
Dr. Tonnu is linked to The Permanente Medical Group, Inc.
Does Dr. Tina Nhatthi Tonnu accept Medicare?
Yes. CMS lists Dr. Tonnu as accepting Medicare assignment.
What drugs does Dr. Tina Nhatthi Tonnu prescribe most?
In 2024 Medicare Part D data, Dr. Tonnu's most prescribed drugs by claims were Quetiapine Fumarate, Sertraline HCl and Lorazepam.
Has Dr. Tina Nhatthi Tonnu received payments from drug or device companies?
CMS Open Payments shows $25 in general payments to Dr. Tonnu from 1 company from 2016 to 2016. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. Tina Nhatthi Tonnu been practicing?
Dr. Tonnu graduated from medical school in 2003, 23 years ago.
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