Dr. Robert D. Greer, MD

  • Sacramento, CA
  • Pulmonologist
NPI1174943146PAC ID4082039086
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
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Mobile number
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Social profiles

Primary practice

Dignity Health - Mercy General Hospital

Hospital · Sacramento, California

See all 6 affiliations

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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 and contact details
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.

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.

See all 6 affiliations for Dr. Greer

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.

EHR by site
SiteEHR vendor and product
Dignity Health - Mercy General HospitalAvailable with a free account
+4 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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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, CaliforniaPrimaryLicense A168700 · 2020 to 2026 · taxonomy 207RP1001X
  • Florida license2017 to 2022
  • Georgia license2006 to 2018
  • Louisiana license1996 to 2017
  • Virginia license2016 to 2017
  • Pennsylvania license1964 to 2016

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.

Medicare services, 2024372
Medicare patients179
Paid by Medicare$50,427
Procedure codes6

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.

See all procedures by Dr. Greer

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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.

Medicare patients, 2024179
Average age73
Average risk score2.59
Also on Medicaid54%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Heart failure58%
  4. Chronic kidney disease53%
  5. Ischemic heart disease53%
  6. Arthritis52%
  7. Diabetes51%
  8. 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.

Part D claims, 201711
Drugs named by CMS1
Total drug cost$71

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.

See all prescribing by Dr. Greer

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.

  1. Medical schoolSt. George's University School of Medicine
  2. Board certified in critical care medicineAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine
  4. Board certified in pulmonary diseaseAmerican Board of Internal Medicine

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

  1. Medicare5
  2. PPO3
  3. HMO2
  4. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Robert D. Greer's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors 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 membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand 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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