Dr. Igor Mashchenko, MD
- Medicare services, 2024
- 342
- Medicare patients, 2024
- 338
- Part D claims, 2024
- 130
- Hospital affiliations
- 3
- Medical groups
- 5
- Practice address
- 100 W. California Blvd, Pasadena, CA 91105
- Practice phone
- Call (626) 397-2618
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Huntington Hospital - Unit
Acute Care Hospital-Unit · Pasadena, California
Find Dr. Mashchenko's professional email, personal email and mobile number
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Dr. Igor Mashchenko is an emergency medicine physician in Pasadena, California
Dr. Mashchenko practices at Huntington Hospital - Unit in Pasadena, California.
Dr. Mashchenko's NPI, 1699270884, was assigned on March 28, 2018. Dr. Mashchenko graduated from St. George's University School of Medicine in 2018. Dr. Mashchenko holds California license A184456.
- NPI
- 1699270884NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052656188
- NPI enumeration date
- March 28, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (626) 397-2618
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Igor Mashchenko practices at Huntington Hospital - Unit in Pasadena, California
Dr. Mashchenko's primary practice is Huntington Hospital - Unit, at 100 W. California Blvd, Pasadena, CA 91105 in Los Angeles County. The practice phone is (626) 397-2618.
- Huntington Hospital - Unit100 W. California Blvd, Pasadena, CA 91105 · Los Angeles CountyPhone(626) 397-2618
Source: Dmand AI Affiliation Data
Dr. Igor Mashchenko is affiliated with 3 sites of care and 5 medical groups
Dr. Mashchenko's primary practice is Huntington Hospital - Unit in Pasadena, California. Dr. Mashchenko is also affiliated with Huntington Hospital. The medical group on file is Exer Urgent Care. Dmand AI also links Dr. Mashchenko to 1 more hospital and 4 medical groups, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Igor Mashchenko's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mashchenko practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Huntington Hospital - Unit | Available with a free account |
| +2 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Igor Mashchenko is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Mashchenko's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Mashchenko is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Mashchenko
Counts of emergency 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. Igor Mashchenko billed Medicare for 342 services in 2024
CMS data shows 342 Medicare services from Dr. Mashchenko across 4 procedure codes in 2024, for 338 Medicare patients. Medicare paid $43,356 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mashchenko compared with the California median for emergency medicine physicians, 2024
- Dr. Mashchenko
- California median
- Medicare services
- 342vs 26529% above
- Medicare patients
- 338vs 24339% above
- Part D claims
- 37vs 6240% below
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Mashchenko'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. Mashchenko and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Igor Mashchenko treated 338 Medicare patients in 2024, average age 75
CMS counts 338 Medicare patients who saw Dr. Mashchenko in 2024. The largest group is 65 to 74, with 119 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 50% are also on Medicaid. Their average risk score is 2.30, 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. Mashchenko's median patient age at 47, with 57% women.
Dr. Mashchenko's Medicare patients by age, 2024
Dr. Mashchenko's Medicare patients by sex, 2024
- Women20260%
- Men13640%
Chronic conditions among Dr. Mashchenko's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis62%
- Ischemic heart disease54%
- Diabetes50%
- Mood disorders48%
- Depression46%
- Anxiety42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mashchenko's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Igor Mashchenko wrote 130 Medicare Part D claims in 2024
In 2024, Dr. Mashchenko wrote 130 Medicare Part D claims for 108 patients. 95% of them were for generic drugs. CMS names the drug for 37 of them, across 2 drugs with 11 or more claims each, at $156 in total drug cost.
Dr. Mashchenko's Part D claims by kind of drug, 2024
- Generic123 claims95%
- Brand-name and other7 claims5%
Dr. Mashchenko'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. Mashchenko's Part D claims, 2024
- Antibiotics45%59 of 130 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Igor Mashchenko takes part in Medicare
Dr. Mashchenko 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. Igor Mashchenko graduated from St. George's University School of Medicine
Dr. Mashchenko graduated from St. George's University School of Medicine in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Igor Mashchenko'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) |
| 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. Igor Mashchenko
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. Igor Mashchenko's NPI number?
Dr. Igor Mashchenko's NPI number is 1699270884. It was assigned on March 28, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Igor Mashchenko?
Dr. Igor Mashchenko is an emergency medicine physician in Pasadena, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Igor Mashchenko practice?
Dr. Mashchenko practices at 100 W. California Blvd, Pasadena, CA 91105. Dr. Mashchenko's primary practice is Huntington Hospital - Unit in Pasadena, California. Dmand AI also links Dr. Mashchenko to 1 hospital and 4 medical groups.
What is Dr. Igor Mashchenko's office phone number?
The practice phone on file for Dr. Mashchenko is (626) 397-2618.
What is Dr. Igor Mashchenko's medical license number?
Dr. Mashchenko holds California license A184456.
Which hospitals is Dr. Igor Mashchenko affiliated with?
Dr. Mashchenko is affiliated with Huntington Hospital. Dmand AI links Dr. Mashchenko to 2 more hospitals.
What medical group is Dr. Igor Mashchenko part of?
Dr. Mashchenko is linked to Exer Urgent Care. Dmand AI links Dr. Mashchenko to 4 more medical groups.
Does Dr. Igor Mashchenko accept Medicare?
Yes. CMS data shows Dr. Mashchenko billed Medicare for 342 services in 2024, and Dr. Mashchenko accepts Medicare assignment.
How many Medicare patients does Dr. Igor Mashchenko see?
CMS counts 338 Medicare patients who saw Dr. Mashchenko in 2024, with an average age of 75.
What services does Dr. Igor Mashchenko bill to Medicare?
In 2024, Dr. Mashchenko's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and emergency department visit (99283).
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Where did Dr. Igor Mashchenko go to medical school?
Dr. Mashchenko graduated from St. George's University School of Medicine in 2018.
What drugs does Dr. Igor Mashchenko prescribe most?
In 2024 Medicare Part D data, Dr. Mashchenko's most prescribed drugs by claims were Cephalexin and Amoxicillin-Clavulanate Potass.
How long has Dr. Igor Mashchenko been practicing?
Dr. Mashchenko graduated from medical school in 2018, 8 years ago.
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