Dr. David D. Ding, MD
- Medicare services, 2024
- 489
- Medicare patients, 2024
- 166
- Part D claims, 2024
- 448
- MIPS score, 2024
- 79
- Hospital affiliations
- 2
- Practice address
- 12401 Washington Blvd, Whittier, CA 90602
- Practice phone
- Call (562) 698-0811
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ding'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. David D. Ding is an internist in Whittier, California
Dr. Ding practices at PIH Health Whittier Hospital in Whittier, California, part of PIH Health.
Dr. Ding's NPI, 1144583758, was assigned on June 19, 2012. Dr. Ding graduated from University of California, San Diego School of Medicine in 2012. Dr. Ding holds California license A161926.
- NPI
- 1144583758NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628381159
- NPI enumeration date
- June 19, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (562) 698-0811
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David D. Ding practices at PIH Health Whittier Hospital in Whittier, California
Dr. Ding's primary practice is PIH Health Whittier Hospital, at 12401 Washington Blvd, Whittier, CA 90602 in Los Angeles County. The practice phone is (562) 698-0811.
- PIH Health Whittier Hospital12401 Washington Blvd, Whittier, CA 90602 · Los Angeles CountyPhone(562) 698-0811
Source: Dmand AI Affiliation Data
Dr. David D. Ding is affiliated with 4 sites of care and 2 medical groups
Dr. Ding's primary practice is PIH Health Whittier Hospital in Whittier, California, part of PIH Health. The medical group on file is PIH Health Physicians. Dmand AI also links Dr. Ding to 1 more hospital, 1 home health agency, 1 skilled nursing facility and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David D. Ding's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ding practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| PIH Health Whittier Hospital | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David D. Ding is one of 16,751 internists in California
Internal medicine is Dr. Ding's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ding is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Ding
Counts of internists 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. David D. Ding billed Medicare for 489 services in 2024
CMS data shows 489 Medicare services from Dr. Ding across 5 procedure codes in 2024, for 166 Medicare patients. Medicare paid $48,008 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ding's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6792024: 48928%
Dr. Ding compared with the California median for internists, 2024
- Dr. Ding
- California median
- Medicare services
- 489vs 36135% above
- Medicare patients
- 166vs 15110% above
- Part D claims
- 202vs 42152% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Ding'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ding and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David D. Ding treated 166 Medicare patients in 2024, average age 75
CMS counts 166 Medicare patients who saw Dr. Ding in 2024. The largest group is 65 to 74, with 55 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 58% are also on Medicaid. Their average risk score is 3.58, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Ding's median patient age at 74, with 51% women.
Dr. Ding's Medicare patients by age, 2024
Dr. Ding's Medicare patients by sex, 2024
- Women10161%
- Men6539%
Chronic conditions among Dr. Ding's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes68%
- Chronic kidney disease58%
- Arthritis53%
- Heart failure52%
- Ischemic heart disease48%
- Mood disorders42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ding's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David D. Ding wrote 448 Medicare Part D claims in 2024
In 2024, Dr. Ding wrote 448 Medicare Part D claims for 163 patients. 89% of them were for generic drugs. CMS names the drug for 202 of them, across 11 drugs with 11 or more claims each, at $5,398 in total drug cost. In 2023, CMS named 181 claims across 10 drugs.
Dr. Ding's Part D claims by kind of drug, 2024
- Generic398 claims89%
- Brand-name and other50 claims11%
Dr. Ding'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. Ding's Part D claims, 2024
- Opioids7%32 of 448 claims
- Antibiotics33%147 of 448 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: 1812024: 20212%
Drugs named by CMS: 11 in 2024, 10 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
Dr. David D. Ding scored 79 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Dr. Ding for performance year 2024, reported as part of a group. Dr. Ding accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Ding's MIPS scores, performance year 2024
- 79of 100Final score
- 58.7of 100Quality
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. David D. Ding received $519 in industry payments from 2018 to 2025
CMS Open Payments shows 4 general payments to Dr. Ding from 3 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $262.
General payments to Dr. Ding by program year, 2018 to 2025
Companies that paid Dr. Ding the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David D. Ding graduated from University of California, San Diego School of Medicine
Dr. Ding graduated from University of California, San Diego School of Medicine in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David D. Ding'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. David D. Ding
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. David D. Ding's NPI number?
Dr. David D. Ding's NPI number is 1144583758. It was assigned on June 19, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. David D. Ding?
Dr. David D. Ding is an internist in Whittier, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David D. Ding practice?
Dr. Ding practices at 12401 Washington Blvd, Whittier, CA 90602. Dr. Ding's primary practice is PIH Health Whittier Hospital in Whittier, California, part of PIH Health. Dmand AI also links Dr. Ding to 1 hospital, 1 home health agency, 1 skilled nursing facility and 1 medical group.
What is Dr. David D. Ding's office phone number?
The practice phone on file for Dr. Ding is (562) 698-0811.
What is Dr. David D. Ding's medical license number?
Dr. Ding holds California license A161926.
Which hospitals is Dr. David D. Ding affiliated with?
Dr. Ding practices at PIH Health Whittier Hospital in Whittier, California. Dmand AI links Dr. Ding to 1 more hospital.
What medical group is Dr. David D. Ding part of?
Dr. Ding is linked to PIH Health Physicians. Dmand AI links Dr. Ding to 1 more medical group.
Does Dr. David D. Ding accept Medicare?
Yes. CMS data shows Dr. Ding billed Medicare for 489 services in 2024, and Dr. Ding accepts Medicare assignment.
What is Dr. David D. Ding's MIPS score?
Dr. Ding's MIPS final score for performance year 2024 is 79 out of 100, reported as part of a group.
How many Medicare patients does Dr. David D. Ding see?
CMS counts 166 Medicare patients who saw Dr. Ding in 2024, with an average age of 75.
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What services does Dr. David D. Ding bill to Medicare?
In 2024, Dr. Ding's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99223).
Where did Dr. David D. Ding go to medical school?
Dr. Ding graduated from University of California, San Diego School of Medicine in 2012.
What drugs does Dr. David D. Ding prescribe most?
In 2024 Medicare Part D data, Dr. Ding's most prescribed drugs by claims were Amoxicillin-Clavulanate Potass, Hydrocodone-Acetaminophen and Furosemide.
Has Dr. David D. Ding received payments from drug or device companies?
CMS Open Payments shows $519 in general payments to Dr. Ding from 3 companies from 2018 to 2025. The largest total came from Stryker Corporation.
How long has Dr. David D. Ding been practicing?
Dr. Ding graduated from medical school in 2012, 14 years ago.
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