Dr. Gregory Krastein, MD
- Medicare services, 2024
- 56
- Medicare patients, 2024
- 46
- Part D claims, 2024
- 1,205
- Hospital affiliations
- 1
- Industry payments
- $717
- Practice address
- 200 Medical Plz, Los Angeles, CA 90024
- Practice phone
- Call (310) 794-9206
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Peter Morton UCLA Medical Building
Los Angeles, California
Find Dr. Krastein's professional email, personal email and mobile number
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Dr. Gregory Krastein is a nephrologist in Los Angeles, California
Dr. Krastein practices at Peter Morton UCLA Medical Building in Los Angeles, California.
Dr. Krastein's NPI, 1942358759, was assigned on January 8, 2007. Dr. Krastein graduated from George Washington University School of Medicine and Health Sciences in 1989. Dr. Krastein holds California license G70211.
- NPI
- 1942358759NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587571252
- NPI enumeration date
- January 8, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (310) 794-9206
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Krastein practices at Peter Morton UCLA Medical Building in Los Angeles, California
Dr. Krastein's primary practice is Peter Morton UCLA Medical Building, at 200 Medical Plz, Los Angeles, CA 90024 in Los Angeles County. The practice phone is (310) 794-9206.
- Peter Morton UCLA Medical Building200 Medical Plz, Los Angeles, CA 90024 · Los Angeles CountyPhone(310) 794-9206
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gregory Krastein is affiliated with 3 sites of care and 2 medical groups
Dr. Krastein's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. Dr. Krastein is also affiliated with Kaiser Permanente Moanalua Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Krastein to 1 more group practice or clinic and 1 medical group, 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. Gregory Krastein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Krastein practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Peter Morton UCLA Medical Building | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory Krastein is one of 1,401 nephrologists in California
Nephrology is Dr. Krastein's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Krastein is board certified in nephrology by the American Board of Internal Medicine. Dmand AI has Dr. Krastein's licenses on file in 2 states: California and Hawaii.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
- Hawaii license
Clinical focus
Dmand AI lists acute kidney failure, chronic hypertension, chronic kidney disease, essential tremor, fluid and electrolyte imbalances, lower back pain, parathyroid gland disorder and tobacco use among the conditions Dr. Krastein treats.
Nephrologists near Dr. Krastein
Counts of nephrologists 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 Krastein billed Medicare for 56 services in 2024
CMS data shows 56 Medicare services from Dr. Krastein across 2 procedure codes in 2024, all of them office visits, for 46 Medicare patients. Medicare paid $3,568 for them. Every service was in an office.
Dr. Krastein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1042024: 5646%
Dr. Krastein compared with the California median for nephrologists, 2024
- Dr. Krastein
- California median
- Medicare services
- 56vs 1,08495% below
- Medicare patients
- 46vs 30785% below
- Part D claims
- 1,039vs 9559% above
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Krastein'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. Krastein?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Krastein and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Krastein treated 46 Medicare patients in 2024, average age 74
CMS counts 46 Medicare patients who saw Dr. Krastein in 2024. The largest group is 75 to 84, with 14 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 54% are also on Medicaid. Their average risk score is 3.38, 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. Krastein's median patient age at 65, with 46% women.
Dr. Krastein's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Krastein's Medicare patients by sex, 2024
- Women2554%
- Men2146%
Chronic conditions among Dr. Krastein's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes57%
- Arthritis43%
- Ischemic heart disease28%
- Anxiety24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Krastein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women46%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory Krastein wrote 1,205 Medicare Part D claims in 2024
In 2024, Dr. Krastein wrote 1,205 Medicare Part D claims for 287 patients. 89% of them were for generic drugs. CMS names the drug for 1,039 of them, across 22 drugs with 11 or more claims each, at $85,973 in total drug cost. In 2023, CMS named 1,133 claims across 23 drugs.
Dr. Krastein's Part D claims by kind of drug, 2024
- Generic1,071 claims89%
- Brand-name and other134 claims11%
Dr. Krastein'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,1332024: 1,0398%
Drugs named by CMS: 22 in 2024, 23 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. Gregory Krastein offers telehealth to Medicare patients
Dr. Krastein accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Krastein as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gregory Krastein received $717 in industry payments from 2017 to 2024
CMS Open Payments shows 15 general payments to Dr. Krastein from 9 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. Relypsa, Inc. paid the most, $125.
General payments to Dr. Krastein by program year, 2017 to 2024
Companies that paid Dr. Krastein the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory Krastein has 1 award and honors on record
Dmand AI lists 1 award for Dr. Krastein, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Krastein
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Gregory Krastein graduated from George Washington University School of Medicine and Health Sciences
Dr. Krastein graduated from George Washington University School of Medicine and Health Sciences in 1989.
- Medical school
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Gregory Krastein accepts plans from 7 insurance carriers
Dr. Krastein is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Kaiser Permanente. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Kaiser Permanente
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Dr. Krastein accepts, by number of carriers
- Medicare6
- PPO5
- HMO3
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Gregory Krastein'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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Krastein
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. Gregory Krastein's NPI number?
Dr. Gregory Krastein's NPI number is 1942358759. It was assigned on January 8, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Krastein?
Dr. Gregory Krastein is a nephrologist in Los Angeles, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Gregory Krastein practice?
Dr. Krastein practices at 200 Medical Plz, Los Angeles, CA 90024. Dr. Krastein's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. Dmand AI also links Dr. Krastein to 1 group practice or clinic and 1 medical group.
What is Dr. Gregory Krastein's office phone number?
The practice phone on file for Dr. Krastein is (310) 794-9206.
What is Dr. Gregory Krastein's medical license number?
Dr. Krastein holds California license G70211, one of the licenses on file in 2 states.
Which states has Dr. Gregory Krastein been licensed in?
Dmand AI has state licenses on file for Dr. Krastein in California (1990 to 2026) and Hawaii (2025 to 2026).
Which hospitals is Dr. Gregory Krastein affiliated with?
Dr. Krastein is affiliated with Kaiser Permanente Moanalua Medical Center.
What medical group is Dr. Gregory Krastein part of?
Dr. Krastein is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Krastein to 1 more medical group.
Does Dr. Gregory Krastein accept Medicare?
Yes. CMS data shows Dr. Krastein billed Medicare for 56 services in 2024, and Dr. Krastein accepts Medicare assignment.
Does Dr. Gregory Krastein offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Krastein as offering telehealth services.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Gregory Krastein see?
CMS counts 46 Medicare patients who saw Dr. Krastein in 2024, with an average age of 74.
Is Dr. Gregory Krastein board certified?
Yes. Dr. Krastein is board certified in nephrology by the American Board of Internal Medicine.
What services does Dr. Gregory Krastein bill to Medicare?
In 2024, Dr. Krastein's most billed Medicare services were office visit, established patient (99214) and office visit, new patient (99204).
Where did Dr. Gregory Krastein go to medical school?
Dr. Krastein graduated from George Washington University School of Medicine and Health Sciences in 1989.
What drugs does Dr. Gregory Krastein prescribe most?
In 2024 Medicare Part D data, Dr. Krastein's most prescribed drugs by claims were Calcitriol, Lisinopril and Amlodipine Besylate.
Has Dr. Gregory Krastein received payments from drug or device companies?
CMS Open Payments shows $717 in general payments to Dr. Krastein from 9 companies from 2017 to 2024. The largest total came from Relypsa, Inc.
How long has Dr. Gregory Krastein been practicing?
Dr. Krastein graduated from medical school in 1989, 37 years ago.
What insurance does Dr. Gregory Krastein accept?
Dr. Krastein is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Kaiser Permanente. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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