Dr. Chi Ching Shum, MD
- Medicare services, 2024
- 1,147
- Medicare patients, 2024
- 88
- Part D claims, 2024
- 1,426
- Hospital affiliations
- 1
- Industry payments
- $42,889
- Practice address
- 1000 N.Village Ave., Rockville Centre, NY 11570
- Practice phone
- Call (516) 705-2216
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mercy Medical Center - Unit
Acute Care Hospital-Unit · Rockville Centre, New York
Find Dr. Shum's professional email, personal email and mobile number
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Dr. Chi Ching Shum is an internist in Rockville Centre, New York
Dr. Shum practices at Mercy Medical Center - Unit in Rockville Centre, New York.
Dr. Shum's NPI, 1033143003, was assigned on July 10, 2006. Dr. Shum graduated from Johns Hopkins University School of Medicine in 1994. Dr. Shum holds New York license 206710.
- NPI
- 1033143003NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800899543
- NPI enumeration date
- July 10, 2006
- NPI status
- Active
- Offers telehealth
- Yes
- Practice phone
- (516) 705-2216
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Chi Ching Shum practices at Mercy Medical Center - Unit in Rockville Centre, New York
Dr. Shum's primary practice is Mercy Medical Center - Unit, at 1000 N.Village Ave., Rockville Centre, NY 11570 in Nassau County. The practice phone is (516) 705-2216.
- Mercy Medical Center - Unit1000 N.Village Ave., Rockville Centre, NY 11570 · Nassau CountyPhone(516) 705-2216
Source: Dmand AI Affiliation Data
Dr. Chi Ching Shum is affiliated with 1 site of care
Dr. Shum's primary practice is Mercy Medical Center - Unit in Rockville Centre, New York.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Chi Ching Shum's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shum practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Medical Center - Unit | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Chi Ching Shum is one of 9,643 internists in New York
Internal medicine is Dr. Shum's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Shum is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Internists near Dr. Shum
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. Chi Ching Shum billed Medicare for 1,147 services in 2024
CMS data shows 1,147 Medicare services from Dr. Shum across 10 procedure codes in 2024, for 88 Medicare patients. Medicare paid $48,748 for them. Every service was in an office.
Dr. Shum's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 3812024: 47926%
- Office and hospital visits
- 2023: 3442024: 43426%
- Surgery
- 2023: 1282024: 1312%
- Other services
- 2023: 572024: 537%
- Drugs given in the office
- 2023: 02024: 50
Dr. Shum compared with the New York median for internists, 2024
- Dr. Shum
- New York median
- Medicare services
- 1,147vs 4262.7 times
- Medicare patients
- 88vs 15844% below
- Part D claims
- 1,002vs 62261% above
Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.
Dr. Shum'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. Shum and other internists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Chi Ching Shum treated 88 Medicare patients in 2024, average age 71
CMS counts 88 Medicare patients who saw Dr. Shum in 2024. The largest group is 65 to 74, with 49 patients. 67% of them have high cholesterol, and 65% have high blood pressure. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Shum's median patient age at 43, with 38% women.
Dr. Shum's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Shum's Medicare patients by sex, 2024
- Women4652%
- Men4248%
Chronic conditions among Dr. Shum's Medicare patients, 2024
- High cholesterol67%
- High blood pressure65%
- Arthritis39%
- Diabetes30%
- Ischemic heart disease28%
- Anxiety20%
- Mood disorders16%
- Cancer15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Shum's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women38%
- Men57%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Chi Ching Shum wrote 1,426 Medicare Part D claims in 2024
In 2024, Dr. Shum wrote 1,426 Medicare Part D claims for 117 patients. 87% of them were for generic drugs. CMS names the drug for 1,002 of them, across 36 drugs with 11 or more claims each, at $25,741 in total drug cost. In 2023, CMS named 900 claims across 34 drugs.
Dr. Shum's Part D claims by kind of drug, 2024
- Generic1,241 claims87%
- Brand-name174 claims12%
- Other11 claims1%
Dr. Shum'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. Shum's Part D claims, 2024
- Opioids5%77 of 1,426 claims
- Antibiotics4%51 of 1,426 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: 9002024: 1,00211%
Drugs named by CMS: 36 in 2024, 34 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. Chi Ching Shum offers telehealth to Medicare patients
CMS lists Dr. Shum as offering telehealth.
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Chi Ching Shum received $42,889 in industry payments from 2016 to 2025
CMS Open Payments shows 2,091 general payments to Dr. Shum from 74 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 93% of the total. AstraZeneca Pharmaceuticals LP paid the most, $4,708.
General payments to Dr. Shum by program year, 2016 to 2025
General payments to Dr. Shum by kind, 2016 to 2025
- Food and beverage$40,10193%
- Consulting fees$1,5304%
- Speaker and faculty fees$1,0272%
- Honoraria$1980%
- Education$340%
Companies that paid Dr. Shum 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. Chi Ching Shum graduated from Johns Hopkins University School of Medicine
Dr. Shum graduated from Johns Hopkins University School of Medicine in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Chi Ching Shum'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 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. Chi Ching Shum
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. Chi Ching Shum's NPI number?
Dr. Chi Ching Shum's NPI number is 1033143003. It was assigned on July 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Chi Ching Shum?
Dr. Chi Ching Shum is an internist in Rockville Centre, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Chi Ching Shum practice?
Dr. Shum practices at 1000 N.Village Ave., Rockville Centre, NY 11570. Dr. Shum's primary practice is Mercy Medical Center - Unit in Rockville Centre, New York.
What is Dr. Chi Ching Shum's office phone number?
The practice phone on file for Dr. Shum is (516) 705-2216.
What is Dr. Chi Ching Shum's medical license number?
Dr. Shum holds New York license 206710.
Does Dr. Chi Ching Shum accept Medicare?
Yes. CMS data shows Dr. Shum billed Medicare for 1,147 services in 2024.
Does Dr. Chi Ching Shum offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Shum as offering telehealth services.
How many Medicare patients does Dr. Chi Ching Shum see?
CMS counts 88 Medicare patients who saw Dr. Shum in 2024, with an average age of 71.
What services does Dr. Chi Ching Shum bill to Medicare?
In 2024, Dr. Shum's most billed Medicare services were ear, nose and throat service (92567), office visit, established patient (99214) and heart test or procedure (93000).
Where did Dr. Chi Ching Shum go to medical school?
Dr. Shum graduated from Johns Hopkins University School of Medicine in 1994.
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What drugs does Dr. Chi Ching Shum prescribe most?
In 2024 Medicare Part D data, Dr. Shum's most prescribed drugs by claims were Levothyroxine Sodium, Rosuvastatin Calcium and Hydrochlorothiazide.
Has Dr. Chi Ching Shum received payments from drug or device companies?
CMS Open Payments shows $42,889 in general payments to Dr. Shum from 74 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Chi Ching Shum been practicing?
Dr. Shum graduated from medical school in 1994, 32 years ago.
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