Dr. Robert D. Greer, MD
- Medicare services, 2024
- 372
- Medicare patients, 2024
- 179
- Part D claims, 2017
- 11
- MIPS score, 2024
- 100
- Hospital affiliations
- 4
- Practice address
- 4001 J St, Sacramento, CA 95819
- Practice phone
- Call (916) 453-4453
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Greer's 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.
Dr. Robert D. Greer is a pulmonologist in Sacramento, California
Dr. Greer practices at Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health.
Dr. Greer's NPI, 1174943146, was assigned on April 17, 2014. Dr. Greer graduated from St. George's University School of Medicine in 2004. Dr. Greer holds California license A168700.
- NPI
- 1174943146NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4082039086
- NPI enumeration date
- April 17, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (916) 453-4453
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- 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. Robert D. Greer practices at Dignity Health - Mercy General Hospital in Sacramento, California
Dr. Greer's primary practice is Dignity Health - Mercy General Hospital, at 4001 J St, Sacramento, CA 95819 in Sacramento County. The practice phone is (916) 453-4453.
- Dignity Health - Mercy General Hospital4001 J St, Sacramento, CA 95819 · Sacramento CountyPhone(916) 453-4453
Source: Dmand AI Affiliation Data
Dr. Robert D. Greer is affiliated with 5 sites of care and 1 medical group
Dr. Greer's primary practice is Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health. Dr. Greer is also affiliated with Dignity Health - Mercy San Juan Medical Center. The medical group on file is Mercy Medical Group. Dmand AI also links Dr. Greer to 2 more hospitals and 1 group practice or clinic, 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. Robert D. Greer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greer practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Mercy General Hospital | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert D. Greer is one of 1,339 pulmonologists in California
Pulmonary disease is Dr. Greer's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Greer is board certified in critical care medicine by the American Board of Internal Medicine. Dmand AI has Dr. Greer's licenses on file in 6 states: California, Florida, Georgia, Louisiana, Virginia and Pennsylvania.
Specialties and state licenses
- Pulmonary disease, CaliforniaPrimary
- Florida license
- Georgia license
- Louisiana license
- Virginia license
- Pennsylvania license
Clinical focus
Dmand AI lists sepsis among the conditions Dr. Greer treats.
Pulmonologists near Dr. Greer
Counts of pulmonologists 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. Robert D. Greer billed Medicare for 372 services in 2024
CMS data shows 372 Medicare services from Dr. Greer across 6 procedure codes in 2024, for 179 Medicare patients. Medicare paid $50,427 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Greer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4022024: 33716%
- Surgery
- 2023: 132024: 35169%
Dr. Greer compared with the California median for pulmonologists, 2024
- Dr. Greer
- California median
- Medicare services
- 372vs 64943% below
- Medicare patients
- 179vs 27234% below
- Part D claims
- 11vs 42197% below
Medians across 1,263 pulmonologists in California with Dmand AI profiles that report each measure.
Dr. Greer'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. Greer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Greer and other pulmonologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert D. Greer treated 179 Medicare patients in 2024, average age 73
CMS counts 179 Medicare patients who saw Dr. Greer in 2024. The largest group is 65 to 74, with 74 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 54% are also on Medicaid. Their average risk score is 2.59, 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. Greer's median patient age at 66, with 43% women.
Dr. Greer's Medicare patients by age, 2024
Dr. Greer's Medicare patients by sex, 2024
- Women9151%
- Men8849%
Chronic conditions among Dr. Greer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Heart failure58%
- Chronic kidney disease53%
- Ischemic heart disease53%
- Arthritis52%
- Diabetes51%
- Atrial fibrillation49%
Share of Medicare patients with each condition. A patient can have several.
Dr. Greer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women43%
- Men57%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert D. Greer wrote 11 Medicare Part D claims in 2017
In 2017, Dr. Greer wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $71 in total drug cost.
Dr. Greer's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Robert D. Greer scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Greer for performance year 2024, reported through an alternative payment model (APM). Dr. Greer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Greer as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Greer's MIPS scores, performance year 2024
- 100of 100Final score
- 86.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
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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Dr. Robert D. Greer graduated from St. George's University School of Medicine
Dr. Greer graduated from St. George's University School of Medicine in 2004.
- Medical school
- Board certified in critical care medicine
- Board certified in internal medicine
- Board certified in pulmonary disease
Source: Dmand AI Professional Profile Data
Dr. Robert D. Greer accepts plans from 6 insurance carriers
Dr. Greer is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- Regence Health Plans
- CMS Medicare
Plan types Dr. Greer accepts, by number of carriers
- Medicare5
- PPO3
- HMO2
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert D. Greer'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 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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| 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. Robert D. Greer
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. Robert D. Greer's NPI number?
Dr. Robert D. Greer's NPI number is 1174943146. It was assigned on April 17, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert D. Greer?
Dr. Robert D. Greer is a pulmonologist in Sacramento, California. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Robert D. Greer practice?
Dr. Greer practices at 4001 J St, Sacramento, CA 95819. Dr. Greer's primary practice is Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health. Dmand AI also links Dr. Greer to 2 hospitals and 1 group practice or clinic.
What is Dr. Robert D. Greer's office phone number?
The practice phone on file for Dr. Greer is (916) 453-4453.
What is Dr. Robert D. Greer's medical license number?
Dr. Greer holds California license A168700, one of the licenses on file in 6 states.
Which states has Dr. Robert D. Greer been licensed in?
Dmand AI has state licenses on file for Dr. Greer in California (2020 to 2026), Florida (2017 to 2022), Georgia (2006 to 2018), Louisiana (1996 to 2017), Virginia (2016 to 2017) and Pennsylvania (1964 to 2016).
Which hospitals is Dr. Robert D. Greer affiliated with?
Dr. Greer practices at Dignity Health - Mercy General Hospital in Sacramento, California. Dr. Greer is also affiliated with Dignity Health - Mercy San Juan Medical Center. Dmand AI links Dr. Greer to 2 more hospitals.
What medical group is Dr. Robert D. Greer part of?
Dr. Greer is linked to Mercy Medical Group.
Does Dr. Robert D. Greer accept Medicare?
Yes. CMS data shows Dr. Greer billed Medicare for 372 services in 2024, and Dr. Greer accepts Medicare assignment.
Does Dr. Robert D. Greer offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Greer as offering telehealth services.
Show 8 more questionsShow fewer questions
What is Dr. Robert D. Greer's MIPS score?
Dr. Greer's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Robert D. Greer see?
CMS counts 179 Medicare patients who saw Dr. Greer in 2024, with an average age of 73.
Is Dr. Robert D. Greer board certified?
Yes. Dr. Greer is board certified in critical care medicine by the American Board of Internal Medicine.
What services does Dr. Robert D. Greer bill to Medicare?
In 2024, Dr. Greer's most billed Medicare services were critical care (99291), hospital inpatient care (99233) and hospital inpatient care (99223).
Where did Dr. Robert D. Greer go to medical school?
Dr. Greer graduated from St. George's University School of Medicine in 2004.
What drugs does Dr. Robert D. Greer prescribe most?
In 2017 Medicare Part D data, Dr. Greer's most prescribed drugs by claims were Lisinopril.
How long has Dr. Robert D. Greer been practicing?
Dr. Greer graduated from medical school in 2004, 22 years ago.
What insurance does Dr. Robert D. Greer accept?
Dr. Greer is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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