Dr. Gregory Alexander Kogan, DO
- Medicare services, 2024
- 92
- Medicare patients, 2024
- 179
- Hospital affiliations
- 2
- Industry payments
- $146
- Medical groups
- 2
- Practice address
- 11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345
- Practice phone
- Call (818) 898-4630
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sub-Acute Care Center
Skilled Nursing Facility - Hospital-Based · Mission Hills, California
Find Dr. Kogan's professional email, personal email and mobile number
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Dr. Gregory Alexander Kogan is an anesthesiologist in Mission Hills, California
Dr. Kogan practices at Sub-Acute Care Center in Mission Hills, California.
Dr. Kogan's NPI, 1831356708, was assigned on May 19, 2008. Dr. Kogan graduated from Western University of Health Sciences College of Dental Med in 2004. Dr. Kogan holds California license 20A 9419.
- NPI
- 1831356708NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648330027
- NPI enumeration date
- May 19, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (818) 898-4630
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Alexander Kogan practices at 2 locations in Mission Hills, California
Dr. Kogan's primary practice is Sub-Acute Care Center, at 11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345 in Los Angeles County. The practice phone is (818) 898-4630. Dr. Kogan also practices at Providence Holy Cross Medical Center, 15031 W Rinaldi St, Mission Hills, CA 91345.
- Sub-Acute Care CenterPrimary11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345 · Los Angeles CountyPhone(818) 898-4630
- Providence Holy Cross Medical Center15031 W Rinaldi St, Mission Hills, CA 91345 · Los Angeles CountyPhone(818) 365-8051
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Gregory Alexander Kogan is affiliated with 4 sites of care and 2 medical groups
Dr. Kogan's primary practice is Sub-Acute Care Center in Mission Hills, California. Dr. Kogan is also affiliated with Providence Holy Cross Medical Center. The medical group on file is Buena Vista Anesthesia Medical Group. Dmand AI also links Dr. Kogan to 1 more hospital, 1 group practice or clinic 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. Gregory Alexander Kogan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kogan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sub-Acute Care Center | 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. Gregory Alexander Kogan is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Kogan's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Kogan is licensed in California.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
Anesthesiologists near Dr. Kogan
Counts of anesthesiologists 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. Gregory Alexander Kogan billed Medicare for 92 services in 2024
CMS data shows 92 Medicare services from Dr. Kogan across 6 procedure codes in 2024, for 179 Medicare patients. Medicare paid $9,250 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Kogan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 792024: 5629%
- Surgery
- 2023: 172024: 36112%
Dr. Kogan compared with the California median for anesthesiologists, 2024
- Dr. Kogan
- California median
- Medicare services
- 92vs 7228% above
- Medicare patients
- 179vs 14325% above
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Kogan'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. Kogan and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Alexander Kogan treated 179 Medicare patients in 2024, average age 75
CMS counts 179 Medicare patients who saw Dr. Kogan in 2024. The largest group is 75 to 84, with 72 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 52% are also on Medicaid. Their average risk score is 2.23, 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. Kogan's median patient age at 63, with 56% women.
Dr. Kogan's Medicare patients by age, 2024
Dr. Kogan's Medicare patients by sex, 2024
- Women9754%
- Men8246%
Chronic conditions among Dr. Kogan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis69%
- Ischemic heart disease49%
- Diabetes45%
- Chronic kidney disease40%
- Heart failure40%
- Mood disorders40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kogan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Gregory Alexander Kogan takes part in Medicare
Dr. Kogan 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. Gregory Alexander Kogan received $146 in industry payments from 2019 to 2024
CMS Open Payments shows 8 general payments to Dr. Kogan from 3 drug and device companies from 2019 to 2024. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $113.
General payments to Dr. Kogan by program year, 2019 to 2024
Companies that paid Dr. Kogan the most, 2019 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory Alexander Kogan graduated from Western University of Health Sciences College of Dental Med
Dr. Kogan graduated from Western University of Health Sciences College of Dental Med in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory Alexander Kogan'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 Affiliation DataDmand AI Practice 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) |
| 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. Gregory Alexander Kogan
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What is Dr. Gregory Alexander Kogan's NPI number?
Dr. Gregory Alexander Kogan's NPI number is 1831356708. It was assigned on May 19, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Alexander Kogan?
Dr. Gregory Alexander Kogan is an anesthesiologist in Mission Hills, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Gregory Alexander Kogan practice?
Dr. Kogan practices at 11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345. Dr. Kogan also practices at 15031 W Rinaldi St, Mission Hills, CA 91345. Dr. Kogan's primary practice is Sub-Acute Care Center in Mission Hills, California. Dmand AI also links Dr. Kogan to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Dr. Gregory Alexander Kogan's office phone number?
The practice phone on file for Dr. Kogan is (818) 898-4630.
What is Dr. Gregory Alexander Kogan's medical license number?
Dr. Kogan holds California license 20A 9419.
Which hospitals is Dr. Gregory Alexander Kogan affiliated with?
Dr. Kogan is affiliated with Providence Holy Cross Medical Center. Dmand AI links Dr. Kogan to 1 more hospital.
What medical group is Dr. Gregory Alexander Kogan part of?
Dr. Kogan is linked to Buena Vista Anesthesia Medical Group. Dmand AI links Dr. Kogan to 1 more medical group.
Does Dr. Gregory Alexander Kogan accept Medicare?
Yes. CMS data shows Dr. Kogan billed Medicare for 92 services in 2024, and Dr. Kogan accepts Medicare assignment.
How many Medicare patients does Dr. Gregory Alexander Kogan see?
CMS counts 179 Medicare patients who saw Dr. Kogan in 2024, with an average age of 75.
What services does Dr. Gregory Alexander Kogan bill to Medicare?
In 2024, Dr. Kogan's most billed Medicare services were surgery: heart and blood vessels (36620), anesthesia (00731) and anesthesia (00840).
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Where did Dr. Gregory Alexander Kogan go to medical school?
Dr. Kogan graduated from Western University of Health Sciences College of Dental Med in 2004.
Has Dr. Gregory Alexander Kogan received payments from drug or device companies?
CMS Open Payments shows $146 in general payments to Dr. Kogan from 3 companies from 2019 to 2024. The largest total came from Medtronic, Inc.
How long has Dr. Gregory Alexander Kogan been practicing?
Dr. Kogan graduated from medical school in 2004, 22 years ago.
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