Lymphadenopathy
Michael Greas
NPI1982059168PAC ID0840678264
- Medicare services, 2024
- 1,438
- Medicare patients, 2024
- 658
- Publications
- 1
- MIPS score, 2024
- 89
- Hospital affiliations
- 3
- Practice address
- 11370 Anderson St, Loma Linda, CA 92354
- Practice phone
- Call (909) 558-2304
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Loma Linda University Pathology Medical Group, Inc.
Loma Linda, California
Find Michael Greas' 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.
Michael Greas is a pathologist in Loma Linda, California
Michael Greas practices at Loma Linda University Pathology Medical Group, Inc. in Loma Linda, California.
Michael Greas' NPI, 1982059168, was assigned on April 26, 2016. Michael Greas holds California license A157365.
NPI and contact details
- NPI
- 1982059168NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840678264
- NPI enumeration date
- April 26, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 558-2304
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Michael Greas practices at Loma Linda University Pathology Medical Group, Inc. in Loma Linda, California
Michael Greas' primary practice is Loma Linda University Pathology Medical Group, Inc., at 11370 Anderson St, Loma Linda, CA 92354 in San Bernardino County. The practice phone is (909) 558-2304.
- Loma Linda University Pathology Medical Group, Inc.11370 Anderson St, Loma Linda, CA 92354 · San Bernardino CountyPhone(909) 558-2304
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Michael Greas is affiliated with 6 sites of care and 3 medical groups
Michael Greas' primary practice is Loma Linda University Pathology Medical Group, Inc. in Loma Linda, California. Michael Greas is also affiliated with Loma Linda University Medical Center. The medical group on file is Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI also links Michael Greas to 2 more hospitals, 2 medical groups, 1 physician office and 1 group practice or clinic, each named with a free account.
Loma Linda University Pathology Medical Group, Inc.Primary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Michael Greas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Michael Greas practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Loma Linda University Pathology Medical Group, Inc. | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Michael Greas is one of 297 pathologists in California
Anatomic pathology is Michael Greas' primary specialty in the NPI Registry, under taxonomy code 207ZP0101X. Michael Greas is board certified in dermatopathology by the American Board of Pathology. Michael Greas is licensed in California.
Specialties and state licenses
- Anatomic pathology, CaliforniaPrimary
Pathologists near Michael Greas
Counts of pathologists 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
Michael Greas billed Medicare for 1,438 services in 2024
CMS data shows 1,438 Medicare services from Michael Greas across 9 procedure codes in 2024, for 658 Medicare patients. Medicare paid $67,650 for them.
Medicare services, 20241,438
Medicare patients658
Paid by Medicare$67,650
Procedure codes9
Where Michael Greas' Medicare services took place, 2024
- In an office1,07375%
- In a facility36525%
Michael Greas compared with the California median for pathologists, 2024
- Michael Greas
- California median
- Medicare services
- 1,438vs 6782.1 times
- Medicare patients
- 658vs 2412.7 times
Medians across 211 pathologists in California with Dmand AI profiles that report each measure.
Michael Greas' 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 Michael Greas and other pathologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Michael Greas treated 658 Medicare patients in 2024, average age 73
CMS counts 658 Medicare patients who saw Michael Greas in 2024. The largest group is 65 to 74, with 295 patients. 70% of them have high blood pressure, and 67% have high cholesterol. 22% are also on Medicaid. Their average risk score is 1.50, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Michael Greas' median patient age at 67, with 52% women.
Medicare patients, 2024658
Average age73
Average risk score1.50
Also on Medicaid22%
Michael Greas' Medicare patients by age, 2024
Michael Greas' Medicare patients by sex, 2024
- Women32349%
- Men33551%
Chronic conditions among Michael Greas' Medicare patients, 2024
- High blood pressure70%
- High cholesterol67%
- Arthritis47%
- Diabetes30%
- Chronic kidney disease22%
- Ischemic heart disease22%
- Atrial fibrillation21%
- Mood disorders21%
Share of Medicare patients with each condition. A patient can have several.
Michael Greas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Michael Greas scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Michael Greas for performance year 2024, reported as part of a group. Michael Greas accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Michael Greas' MIPS scores, performance year 2024
- 89of 100Final score
- 72.1of 100Quality
- 80of 100Promoting Interoperability
- 40of 100Improvement Activities
- 77of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Michael Greas has 1 publication on record
Dmand AI links 1 paper to Michael Greas. Michael Greas' most frequent co-authors are Justin Christopher Kerstetter, MD, Leonard Jeffrey Medeiros, MD and Jun Wang, MD.
Papers1
Michael Greas' most frequent co-authors
- Justin Christopher Kerstetter, MD1 shared paper
- Leonard Jeffrey Medeiros, MD1 shared paper
- Jun Wang, MD1 shared paper
Recent publications by Michael Greas
See who Michael Greas researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Michael Greas works with, so you can find a warm path to the right pathologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Michael Greas received $117 in industry payments in 2025
CMS Open Payments shows 1 general payment to Michael Greas from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Blueprint Medicines Corporation paid the most, $117.
Companies that paid Michael Greas the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Michael Greas is board certified in dermatopathology
- Board certified in dermatopathology
- Board certified in hematopathology
- Board certified in pathology - anatomic/pathology - clinical
Source: Dmand AI Professional Profile Data
Michael Greas accepts plans from 6 insurance carriers
Michael Greas is in network with 6 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- United Healthcare
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- Elevance
- HCSC
Plan types Michael Greas accepts, by number of carriers
- PPO3
- Medicare2
- POS2
- EPO1
- HMO1
Source: Dmand AI Insurance Network Data
Sources for Michael Greas'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 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Michael Greas
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Michael Greas' NPI number?
Michael Greas' NPI number is 1982059168. It was assigned on April 26, 2016, and it is active in the NPI Registry.
What does Michael Greas specialize in?
Michael Greas is a pathologist in Loma Linda, California. The primary specialty in the NPI Registry is Anatomic Pathology Physician (taxonomy code 207ZP0101X).
Where does Michael Greas practice?
Michael Greas practices at 11370 Anderson St, Loma Linda, CA 92354. Michael Greas' primary practice is Loma Linda University Pathology Medical Group, Inc. in Loma Linda, California. Dmand AI also links Michael Greas to 2 hospitals, 2 medical groups, 1 physician office and 1 group practice or clinic.
What is Michael Greas' office phone number?
The practice phone on file for Michael Greas is (909) 558-2304.
What is Michael Greas' medical license number?
Michael Greas holds California license A157365.
Which hospitals is Michael Greas affiliated with?
Michael Greas is affiliated with Loma Linda University Medical Center. Dmand AI links Michael Greas to 2 more hospitals.
What medical group is Michael Greas part of?
Michael Greas is linked to Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI links Michael Greas to 2 more medical groups.
Does Michael Greas accept Medicare?
Yes. CMS data shows Michael Greas billed Medicare for 1,438 services in 2024, and Michael Greas accepts Medicare assignment.
What is Michael Greas' MIPS score?
Michael Greas' MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
How many Medicare patients does Michael Greas see?
CMS counts 658 Medicare patients who saw Michael Greas in 2024, with an average age of 73.
Show 7 more questionsShow fewer questions
Is Michael Greas board certified?
Yes. Michael Greas is board certified in dermatopathology by the American Board of Pathology.
What services does Michael Greas bill to Medicare?
In 2024, Michael Greas' most billed Medicare services were lab and pathology test (88305), lab and pathology test (88341) and lab and pathology test (88342).
Has Michael Greas received payments from drug or device companies?
CMS Open Payments shows $117 in general payments to Michael Greas from 1 company from 2025 to 2025. The largest total came from Blueprint Medicines Corporation.
How long has Michael Greas been practicing?
Michael Greas graduated from medical school in 2010, 16 years ago.
Does Michael Greas do research?
Dmand AI links 1 publication to Michael Greas.
Who does Michael Greas publish with?
Michael Greas' most frequent co-authors are Justin Christopher Kerstetter, MD (1 shared paper), Leonard Jeffrey Medeiros, MD (1 shared paper) and Jun Wang, MD (1 shared paper).
What insurance does Michael Greas accept?
Michael Greas is in network with 6 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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