Dr. Richard George Greiner Jr., MD
- Medicare services, 2024
- 287
- Medicare patients, 2024
- 280
- Part D claims, 2024
- 414
- MIPS score, 2024
- 96
- Hospital affiliations
- 1
- Practice address
- 300 Seaside Ave, Milford, CT 06460
- Practice phone
- Call (203) 876-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Bridgeport Hospital -Milford Campus
Milford, Connecticut
Find Dr. Greiner'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. Richard George Greiner Jr. is an emergency medicine physician in Milford, Connecticut
Dr. Greiner practices at Bridgeport Hospital -Milford Campus in Milford, Connecticut.
Dr. Greiner's NPI, 1871602318, was assigned on August 29, 2006. Dr. Greiner graduated from Pennsylvania State University College of Medicine in 2004. Dr. Greiner holds Connecticut license 045480.
- NPI
- 1871602318NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476554494
- NPI enumeration date
- August 29, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 876-4000
- 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 Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Richard George Greiner Jr. practices at Bridgeport Hospital -Milford Campus in Milford, Connecticut
Dr. Greiner's primary practice is Bridgeport Hospital -Milford Campus, at 300 Seaside Ave, Milford, CT 06460 in South Central Ct County. The practice phone is (203) 876-4000.
- Bridgeport Hospital -Milford Campus300 Seaside Ave, Milford, CT 06460 · South Central Ct CountyPhone(203) 876-4000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Richard George Greiner Jr. is affiliated with 2 sites of care and 3 medical groups
Dr. Greiner's primary practice is Bridgeport Hospital -Milford Campus in Milford, Connecticut. Dr. Greiner is also affiliated with Bridgeport Hospital. The medical group on file is Bridgeport Hospital. Dmand AI also links Dr. Greiner to 2 more medical groups, each named with a free account.
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 Dr. Richard George Greiner Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greiner practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bridgeport Hospital -Milford Campus | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Richard George Greiner Jr. is one of 683 emergency medicine physicians in Connecticut
Emergency medicine is Dr. Greiner's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Greiner's licenses on file in 2 states: Connecticut and Pennsylvania.
Specialties and state licenses
- Emergency medicine, ConnecticutPrimary
- Pennsylvania license
Emergency medicine physicians near Dr. Greiner
Counts of emergency medicine physicians 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. Richard George Greiner Jr. billed Medicare for 287 services in 2024
CMS data shows 287 Medicare services from Dr. Greiner across 5 procedure codes in 2024, for 280 Medicare patients. Medicare paid $28,327 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Greiner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3332024: 28714%
Dr. Greiner compared with the Connecticut median for emergency medicine physicians, 2024
- Dr. Greiner
- Connecticut median
- Medicare services
- 287vs 24318% above
- Medicare patients
- 280vs 25012% above
- Part D claims
- 297vs 486.2 times
Medians across 695 emergency medicine physicians in Connecticut with Dmand AI profiles that report each measure.
Dr. Greiner'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. Greiner and other emergency medicine physicians in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard George Greiner Jr. treated 280 Medicare patients in 2024, average age 77
CMS counts 280 Medicare patients who saw Dr. Greiner in 2024. The largest group is 75 to 84, with 98 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 1.87, 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. Greiner's median patient age at 74, with 57% women.
Dr. Greiner's Medicare patients by age, 2024
Dr. Greiner's Medicare patients by sex, 2024
- Women17061%
- Men11039%
Chronic conditions among Dr. Greiner's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Anxiety40%
- Mood disorders38%
- Heart failure36%
- Depression35%
- Ischemic heart disease35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Greiner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women57%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Richard George Greiner Jr. wrote 414 Medicare Part D claims in 2024
In 2024, Dr. Greiner wrote 414 Medicare Part D claims for 239 patients. 83% of them were for generic drugs. CMS names the drug for 297 of them, across 11 drugs with 11 or more claims each, at $3,413 in total drug cost. In 2023, CMS named 404 claims across 14 drugs.
Dr. Greiner's Part D claims by kind of drug, 2024
- Generic343 claims83%
- Brand-name71 claims17%
Dr. Greiner'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.
Drug classes CMS tracks in Dr. Greiner's Part D claims, 2024
- Opioids6%24 of 414 claims
- Antibiotics25%103 of 414 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4042024: 29726%
Drugs named by CMS: 11 in 2024, 14 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. Richard George Greiner Jr. scored 96 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 96 out of 100 for Dr. Greiner for performance year 2024, reported as part of a group. Dr. Greiner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Greiner's MIPS scores, performance year 2024
- 96of 100Final score
- 87.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 78of 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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Dr. Richard George Greiner Jr. received $24 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Greiner from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $24.
Companies that paid Dr. Greiner the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Richard George Greiner Jr. graduated from Pennsylvania State University College of Medicine
Dr. Greiner graduated from Pennsylvania State University College of Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Richard George Greiner Jr.'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) |
| 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)Clinician Public Reporting: Overall MIPS Performance (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. Richard George Greiner Jr.
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. Richard George Greiner Jr.'s NPI number?
Dr. Richard George Greiner Jr.'s NPI number is 1871602318. It was assigned on August 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard George Greiner Jr.?
Dr. Richard George Greiner Jr. is an emergency medicine physician in Milford, Connecticut. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Richard George Greiner Jr. practice?
Dr. Greiner practices at 300 Seaside Ave, Milford, CT 06460. Dr. Greiner's primary practice is Bridgeport Hospital -Milford Campus in Milford, Connecticut. Dmand AI also links Dr. Greiner to 2 medical groups.
What is Dr. Richard George Greiner Jr.'s office phone number?
The practice phone on file for Dr. Greiner is (203) 876-4000.
What is Dr. Richard George Greiner Jr.'s medical license number?
Dr. Greiner holds Connecticut license 045480, one of the licenses on file in 2 states.
Which states has Dr. Richard George Greiner Jr. been licensed in?
Dmand AI has state licenses on file for Dr. Greiner in Connecticut and Pennsylvania.
Which hospitals is Dr. Richard George Greiner Jr. affiliated with?
Dr. Greiner is affiliated with Bridgeport Hospital.
What medical group is Dr. Richard George Greiner Jr. part of?
Dr. Greiner is linked to Bridgeport Hospital. Dmand AI links Dr. Greiner to 2 more medical groups.
Does Dr. Richard George Greiner Jr. accept Medicare?
Yes. CMS data shows Dr. Greiner billed Medicare for 287 services in 2024, and Dr. Greiner accepts Medicare assignment.
What is Dr. Richard George Greiner Jr.'s MIPS score?
Dr. Greiner's MIPS final score for performance year 2024 is 96 out of 100, reported as part of a group.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Richard George Greiner Jr. see?
CMS counts 280 Medicare patients who saw Dr. Greiner in 2024, with an average age of 77.
What services does Dr. Richard George Greiner Jr. bill to Medicare?
In 2024, Dr. Greiner's most billed Medicare services were emergency department visit (99284), emergency department visit (99285) and emergency department visit (99283).
Where did Dr. Richard George Greiner Jr. go to medical school?
Dr. Greiner graduated from Pennsylvania State University College of Medicine in 2004.
What drugs does Dr. Richard George Greiner Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Greiner's most prescribed drugs by claims were Albuterol Sulfate Hfa, Ibuprofen and Prednisone.
Has Dr. Richard George Greiner Jr. received payments from drug or device companies?
CMS Open Payments shows $24 in general payments to Dr. Greiner from 1 company from 2016 to 2016. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Richard George Greiner Jr. been practicing?
Dr. Greiner graduated from medical school in 2004, 22 years ago.
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