Dr. Marc I. Dinowitz, MD
- Medicare services, 2024
- 3,634
- Medicare patients, 2024
- 785
- Part D claims, 2024
- 125
- Industry payments
- $2,915
- Affiliated sites
- 2
- Practice address
- 5402 Philadelphia St, Chino, CA 91710
- Practice phone
- Call (909) 517-0087
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Chino Care ADHC
Chino, California
Find Dr. Dinowitz'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. Marc I. Dinowitz is an orthopaedic hand surgery physician in Chino, California
Dr. Dinowitz practices at Chino Care ADHC in Chino, California.
Dr. Dinowitz's NPI, 1689613275, was assigned on June 6, 2006. Dr. Dinowitz graduated from New York University School of Medicine in 1992. Dr. Dinowitz holds Arizona license 26098.
- NPI
- 1689613275NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9830170976
- NPI enumeration date
- June 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 517-0087
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marc I. Dinowitz practices at Chino Care ADHC in Chino, California
Dr. Dinowitz's primary practice is Chino Care ADHC, at 5402 Philadelphia St, Chino, CA 91710 in San Bernardino County. The practice phone is (909) 517-0087.
- Chino Care ADHC5402 Philadelphia St, Chino, CA 91710 · San Bernardino CountyPhone(909) 517-0087
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Marc I. Dinowitz is affiliated with 3 sites of care and 4 medical groups
Dr. Dinowitz's primary practice is Chino Care ADHC in Chino, California. The medical group on file is OrthoArizona. Dmand AI also links Dr. Dinowitz to 3 more medical groups and 2 group practices and clinics, 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. Marc I. Dinowitz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dinowitz practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chino Care ADHC | Available with a free account |
| +2 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marc I. Dinowitz is one of 268 orthopaedic hand surgery physicians in California
Hand surgery is Dr. Dinowitz's primary specialty in the NPI Registry, under taxonomy code 207XS0106X. Dr. Dinowitz is licensed in Arizona.
Specialties and state licenses
- Orthopaedic hand surgery, ArizonaPrimary
Orthopaedic hand surgery physicians near Dr. Dinowitz
Counts of orthopaedic hand surgery 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. Marc I. Dinowitz billed Medicare for 3,634 services in 2024
CMS data shows 3,634 Medicare services from Dr. Dinowitz across 29 procedure codes in 2024, for 785 Medicare patients. Medicare paid $251,677 for them.
Dr. Dinowitz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,8772024: 1,30930%
- Imaging
- 2023: 1,2142024: 92424%
- Surgery
- 2023: 1,1332024: 80229%
- Drugs given in the office
- 2023: 8672024: 49643%
- Other services
- 2023: 1212024: 10315%
Where Dr. Dinowitz's Medicare services took place, 2024
- In an office3,31091%
- In a facility3249%
Dr. Dinowitz compared with the California median for orthopaedic hand surgery physicians, 2024
- Dr. Dinowitz
- California median
- Medicare services
- 3,634vs 9583.8 times
- Medicare patients
- 785vs 3442.3 times
- Part D claims
- 100vs 5196% above
Medians across 252 orthopaedic hand surgery physicians in California with Dmand AI profiles that report each measure.
Dr. Dinowitz'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.
Need commercial claims for Dr. Dinowitz?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Dinowitz and other orthopaedic hand surgery physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marc I. Dinowitz treated 785 Medicare patients in 2024, average age 75
CMS counts 785 Medicare patients who saw Dr. Dinowitz in 2024. The largest group is 65 to 74, with 406 patients. 75% of them have high cholesterol, and 72% have arthritis. Their average risk score is 1.00, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Dinowitz's median patient age at 71, with 64% women.
Dr. Dinowitz's Medicare patients by age, 2024
Dr. Dinowitz's Medicare patients by sex, 2024
- Women50564%
- Men28036%
Chronic conditions among Dr. Dinowitz's Medicare patients, 2024
- High cholesterol75%
- Arthritis72%
- High blood pressure68%
- Ischemic heart disease28%
- Diabetes25%
- Chronic kidney disease24%
- Anxiety22%
- Osteoporosis20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Dinowitz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women64%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Marc I. Dinowitz wrote 125 Medicare Part D claims in 2024
In 2024, Dr. Dinowitz wrote 125 Medicare Part D claims for 105 patients. 100% of them were for generic drugs. CMS names the drug for 100 of them, across 3 drugs with 11 or more claims each, at $721 in total drug cost. In 2023, CMS named 11 claims across 1 drug.
Dr. Dinowitz'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. Dinowitz's Part D claims, 2024
- Opioids58%73 of 125 claims
- Antibiotics22%28 of 125 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: 112024: 100809%
Drugs named by CMS: 3 in 2024, 1 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. Marc I. Dinowitz takes part in Medicare
Dr. Dinowitz 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. Marc I. Dinowitz received $2,915 in industry payments from 2016 to 2025
CMS Open Payments shows 111 general payments to Dr. Dinowitz from 18 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Endo Pharmaceuticals Inc. paid the most, $811.
General payments to Dr. Dinowitz by program year, 2016 to 2025
General payments to Dr. Dinowitz by kind, 2016 to 2025
- Food and beverage$2,900100%
- Education$140%
Companies that paid Dr. Dinowitz 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. Marc I. Dinowitz graduated from New York University School of Medicine
Dr. Dinowitz graduated from New York University School of Medicine in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Marc I. Dinowitz'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) |
| 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) |
| 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. Marc I. Dinowitz
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. Marc I. Dinowitz's NPI number?
Dr. Marc I. Dinowitz's NPI number is 1689613275. It was assigned on June 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Marc I. Dinowitz?
Dr. Marc I. Dinowitz is an orthopaedic hand surgery physician in Chino, California. The primary specialty in the NPI Registry is Orthopaedic Hand Surgery Physician (taxonomy code 207XS0106X).
Where does Dr. Marc I. Dinowitz practice?
Dr. Dinowitz practices at 5402 Philadelphia St, Chino, CA 91710. Dr. Dinowitz's primary practice is Chino Care ADHC in Chino, California. Dmand AI also links Dr. Dinowitz to 3 medical groups and 2 group practices and clinics.
What is Dr. Marc I. Dinowitz's office phone number?
The practice phone on file for Dr. Dinowitz is (909) 517-0087.
What is Dr. Marc I. Dinowitz's medical license number?
Dr. Dinowitz holds Arizona license 26098.
What medical group is Dr. Marc I. Dinowitz part of?
Dr. Dinowitz is linked to OrthoArizona. Dmand AI links Dr. Dinowitz to 3 more medical groups.
Does Dr. Marc I. Dinowitz accept Medicare?
Yes. CMS data shows Dr. Dinowitz billed Medicare for 3,634 services in 2024, and Dr. Dinowitz accepts Medicare assignment.
How many Medicare patients does Dr. Marc I. Dinowitz see?
CMS counts 785 Medicare patients who saw Dr. Dinowitz in 2024, with an average age of 75.
What services does Dr. Marc I. Dinowitz bill to Medicare?
In 2024, Dr. Dinowitz's most billed Medicare services were office visit, established patient (99213), diagnostic imaging (73110) and injected or infused drug (J0702).
Where did Dr. Marc I. Dinowitz go to medical school?
Dr. Dinowitz graduated from New York University School of Medicine in 1992.
Show 3 more questionsShow fewer questions
What drugs does Dr. Marc I. Dinowitz prescribe most?
In 2024 Medicare Part D data, Dr. Dinowitz's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Cephalexin and Methylprednisolone.
Has Dr. Marc I. Dinowitz received payments from drug or device companies?
CMS Open Payments shows $2,915 in general payments to Dr. Dinowitz from 18 companies from 2016 to 2025. The largest total came from Endo Pharmaceuticals Inc.
How long has Dr. Marc I. Dinowitz been practicing?
Dr. Dinowitz graduated from medical school in 1992, 34 years ago.
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