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Dr. Gregory C. Greaney, MD
NPI1609984137
- Medicare services, 2019
- 148
- Part D claims, 2018
- 31
- Publications
- 10
- Industry payments
- $1,527
- Insurance carriers
- 3
- Practice address
- 317 W Pueblo St, Santa Barbara, CA 93105-4355
- Practice phone
- Call (805) 681-1761
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Greaney's professional email, personal email and mobile number
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Dr. Gregory C. Greaney is a colorectal surgeon in Santa Barbara, California
Dr. Greaney practices in Santa Barbara, California.
Dr. Greaney's NPI, 1609984137, was assigned on August 25, 2006. Dr. Greaney graduated from Keck School of Medicine of USC in 1981. Dr. Greaney holds California license G47697.
NPI and contact details
- NPI
- 1609984137NPI Registry (opens in a new tab)
- NPI enumeration date
- August 25, 2006
- NPI status
- Active
- Practice phone
- (805) 681-1761
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Gregory C. Greaney's practice address is in Santa Barbara, California
Dr. Greaney's practice address in the NPI Registry is 317 W Pueblo St, Santa Barbara, CA 93105-4355. The practice phone is (805) 681-1761.
- NPI Registry address317 W Pueblo St, Santa Barbara, CA 93105-4355Phone(805) 681-1761
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Gregory C. Greaney's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greaney practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Greaney's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory C. Greaney is one of 187 colorectal surgeons in California
Colon and rectal surgery is Dr. Greaney's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Dr. Greaney is licensed in California.
Specialties and state licenses
- Colon and rectal surgery, CaliforniaPrimary
Colorectal surgeons near Dr. Greaney
Counts of colorectal surgeons with a Dmand AI profile, by place and practice. Each opens the list.
187colorectal surgeons in California
3colorectal surgeons in Santa Barbara
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gregory C. Greaney billed Medicare for 148 services in 2019
CMS data shows 148 Medicare services from Dr. Greaney across 3 procedure codes in 2019. Medicare paid $7,457 for them. Every service was in an office.
Medicare services, 2019148
Paid by Medicare$7,457
Procedure codes3
Dr. Greaney's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 2852019: 10464%
- Surgery
- 2018: 1172019: 4462%
Dr. Greaney compared with the California median for colorectal surgeons, 2019
- Dr. Greaney
- California median
- Medicare services
- 148vs 27045% below
- Part D claims
- 31vs 7156% below
Medians across 175 colorectal surgeons in California with Dmand AI profiles that report each measure.
Dr. Greaney's most billed Medicare procedure codes, 2019
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. Greaney?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Greaney and other colorectal surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory C. Greaney's patients have a median age of 78
Across all payers, Dmand AI patient panel data puts Dr. Greaney's median patient age at 78, with 67% women.
Dr. Greaney's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. Gregory C. Greaney wrote 31 Medicare Part D claims in 2018
In 2018, Dr. Greaney wrote 31 Medicare Part D claims. They cover 2 drugs, with $1,172 in total drug cost. In 2017, CMS named 63 claims across 2 drugs.
Part D claims, 201831
Drugs named by CMS2
Total drug cost$1,172
Dr. Greaney's most prescribed drugs by claims, 2018
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, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 632018: 3151%
Drugs named by CMS: 2 in 2018, 2 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Gregory C. Greaney has 10 publications on record
Dmand AI links 10 papers to Dr. Greaney. The most frequent topics are Postoperative Complications, Cholecystectomy, Laparoscopic and Colectomy. Dr. Greaney has published most often in Am Surg. Dr. Greaney's most frequent co-authors are Kenneth Waxman, MD, Matthew G. Bindewald and Michael I. Bozuk, MD.
Papers10
Topics Dr. Greaney writes about most
- Postoperative Complications
- Cholecystectomy, Laparoscopic
- Colectomy
- Length of Stay
- Pain Measurement
- Pain, Postoperative
- Preoperative Care
Dr. Greaney's most frequent co-authors
- Kenneth Waxman, MD4 shared papers
- Matthew G. Bindewald1 shared paper
- Michael I. Bozuk, MD1 shared paper
Recent publications by Dr. Greaney
APACHEPostoperative ComplicationsProtein C
Colonic DiseasesIntestinal PerforationUlcer
Gastroenterology
Arteriovenous FistulaBiopsy, NeedleFistula
See who Dr. Greaney researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Greaney works with, so you can find a warm path to the right colorectal surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gregory C. Greaney received $1,527 in industry payments from 2016 to 2025
CMS Open Payments shows 62 general payments to Dr. Greaney from 21 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Covidien Sales LLC paid the most, $222.
General payments to Dr. Greaney by program year, 2016 to 2025
General payments to Dr. Greaney by kind, 2016 to 2025
$1.5Kin total
- Food and beverage$1,50398%
- Education$242%
Companies that paid Dr. Greaney the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory C. Greaney has 4 awards and honors on record
Dmand AI lists 4 awards for Dr. Greaney, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Greaney
- 2013
- CMS Stage 1 EHR
- Top Doctors:LA Area
- 2012
- Top Doctors:Southern California
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Gregory C. Greaney graduated from Keck School of Medicine of USC
Dr. Greaney graduated from Keck School of Medicine of USC in 1981. Dr. Greaney is a member of ACS.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Gregory C. Greaney accepts plans from 3 insurance carriers
Dr. Greaney is in network with 3 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
Plan types Dr. Greaney accepts, by number of carriers
- Medicare3
- PPO3
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Gregory C. Greaney'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 |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| 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 C. Greaney
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 C. Greaney's NPI number?
Dr. Gregory C. Greaney's NPI number is 1609984137. It was assigned on August 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory C. Greaney?
Dr. Gregory C. Greaney is a colorectal surgeon in Santa Barbara, California. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).
Where does Dr. Gregory C. Greaney practice?
Dr. Greaney practices at 317 W Pueblo St, Santa Barbara, CA 93105-4355.
What is Dr. Gregory C. Greaney's office phone number?
The practice phone on file for Dr. Greaney is (805) 681-1761.
What is Dr. Gregory C. Greaney's medical license number?
Dr. Greaney holds California license G47697.
Does Dr. Gregory C. Greaney accept Medicare?
Yes. CMS data shows Dr. Greaney billed Medicare for 148 services in 2019.
What services does Dr. Gregory C. Greaney bill to Medicare?
In 2019, Dr. Greaney's most billed Medicare services were office visit, established patient (99212), office visit, established patient (99213) and surgery: digestive system (46600).
Where did Dr. Gregory C. Greaney go to medical school?
Dr. Greaney graduated from Keck School of Medicine of USC in 1981.
What drugs does Dr. Gregory C. Greaney prescribe most?
In 2018 Medicare Part D data, Dr. Greaney's most prescribed drugs by claims were Hydrocodone-Acetaminophen and Suprep.
Has Dr. Gregory C. Greaney received payments from drug or device companies?
CMS Open Payments shows $1,527 in general payments to Dr. Greaney from 21 companies from 2016 to 2025. The largest total came from Covidien Sales LLC.
Show 4 more questionsShow fewer questions
How long has Dr. Gregory C. Greaney been practicing?
Dr. Greaney graduated from medical school in 1981, 45 years ago.
Does Dr. Gregory C. Greaney do research?
Dmand AI links 10 publications to Dr. Greaney.
Who does Dr. Gregory C. Greaney publish with?
Dr. Greaney's most frequent co-authors are Kenneth Waxman, MD (4 shared papers), Matthew G. Bindewald (1 shared paper) and Michael I. Bozuk, MD (1 shared paper).
What insurance does Dr. Gregory C. Greaney accept?
Dr. Greaney is in network with 3 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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