Childs Nerv Syst
Dr. Krista N. Greenan, MD
- Medicare services, 2024
- 68
- Medicare patients, 2024
- 110
- Part D claims, 2024
- 38
- Publications
- 3
- Clinical trials
- 2
- Practice address
- 1400 E Boulder St, Colorado Springs, CO 80909
- Practice phone
- Call (719) 365-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Greenan'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. Krista N. Greenan is a neurosurgeon in Colorado Springs, Colorado
Dr. Greenan practices at UCHealth Memorial Hospital Central in Colorado Springs, Colorado, part of UCHealth.
Dr. Greenan's NPI, 1801026992, was assigned on July 23, 2009. Dr. Greenan graduated from UC Davis School of Medicine in 2009. Dr. Greenan holds Colorado license DR.0061162.
- NPI
- 1801026992NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6507053543
- NPI enumeration date
- July 23, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (719) 365-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Krista N. Greenan practices at UCHealth Memorial Hospital Central in Colorado Springs, Colorado
Dr. Greenan's primary practice is UCHealth Memorial Hospital Central, at 1400 E Boulder St, Colorado Springs, CO 80909 in El Paso County. The practice phone is (719) 365-5000.
- UCHealth Memorial Hospital Central1400 E Boulder St, Colorado Springs, CO 80909 · El Paso CountyPhone(719) 365-5000
Source: Dmand AI Affiliation Data
Dr. Krista N. Greenan is affiliated with 3 sites of care and 1 medical group
Dr. Greenan's primary practice is UCHealth Memorial Hospital Central in Colorado Springs, Colorado, part of UCHealth. Dr. Greenan is also affiliated with UCHealth Parkview Medical Center. The medical group on file is UCHealth Medical Group. Dmand AI also links Dr. Greenan to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Krista N. Greenan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greenan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCHealth Memorial Hospital Central | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Krista N. Greenan is one of 143 neurosurgeons in Colorado
Neurological surgery is Dr. Greenan's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Greenan is board certified in neurological surgery by the American Board of Neurological Surgery. Dmand AI has Dr. Greenan's licenses on file in 2 states: Colorado and California.
Specialties and state licenses
- Neurological surgery, ColoradoPrimary
- California license
Clinical focus
Dmand AI lists back and neck pain treatment without fusion, craniotomy, lower back pain, spinal fusion and thoracic spine disorders among the conditions Dr. Greenan treats.
Neurosurgeons near Dr. Greenan
Counts of neurosurgeons 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. Krista N. Greenan billed Medicare for 68 services in 2024
CMS data shows 68 Medicare services from Dr. Greenan across 4 procedure codes in 2024, all of them office visits, for 110 Medicare patients. Medicare paid $7,220 for them. Every service was in an office.
Dr. Greenan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 652024: 685%
Dr. Greenan compared with the Colorado median for neurosurgeons, 2024
- Dr. Greenan
- Colorado median
- Medicare services
- 68vs 13951% below
- Medicare patients
- 110vs 113Close to median
- Part D claims
- 17vs 2429% below
Medians across 126 neurosurgeons in Colorado with Dmand AI profiles that report each measure.
Dr. Greenan'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. Greenan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Greenan and other neurosurgeons in Colorado.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Krista N. Greenan treated 110 Medicare patients in 2024, average age 71
CMS counts 110 Medicare patients who saw Dr. Greenan in 2024. The largest group is 75 to 84, with 41 patients. 72% of them have high blood pressure, and 65% have high cholesterol. 19% are also on Medicaid. Their average risk score is 1.46, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Greenan's median patient age at 71, with 51% women.
Dr. Greenan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Greenan's Medicare patients by sex, 2024
- Women5146%
- Men5954%
Chronic conditions among Dr. Greenan's Medicare patients, 2024
- High blood pressure72%
- High cholesterol65%
- Arthritis50%
- Mood disorders38%
- Anxiety36%
- Diabetes36%
- Depression33%
- Ischemic heart disease33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Greenan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Krista N. Greenan wrote 38 Medicare Part D claims in 2024
In 2024, Dr. Greenan wrote 38 Medicare Part D claims for 25 patients. 100% of them were for generic drugs. CMS names the drug for 17 of them, across 1 drug with 11 or more claims each, at $206 in total drug cost. In 2021, CMS named 12 claims across 1 drug.
Dr. Greenan's most prescribed drugs by claims, 2023
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, 2021 to 2023
- 2021
- 2023
- Claims for drugs CMS names
- 2021: 122023: 1742%
Drugs named by CMS: 1 in 2023, 1 in 2021.
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. Krista N. Greenan ranks in the 55th percentile for spinal fusion in Medicare
Dr. Greenan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Greenan as offering telehealth. CMS counts 49 procedures of spinal fusion by Dr. Greenan, more than 55% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Greenan ranks in Medicare procedure volume
- Spinal fusion
- 55th percentile49 procedures
- Laminectomy or laminotomy (partial removal of spine bones)
- 43rd percentile16 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Krista N. Greenan has 3 publications on record
Dmand AI links 3 papers to Dr. Greenan, published from 2017 to 2020. Dr. Greenan has published most often in J Neurosurg Pediatr. Dr. Greenan's most frequent co-authors are Marike Zwienenberg, MD, Jared D. Ament, MD, MPH and Jennifer L. Armstrong, MD.
Dr. Greenan's papers by year, 2017 to 2020
Dr. Greenan's most frequent co-authors
- Marike Zwienenberg, MD2 shared papers
- Jared D. Ament, MD, MPH1 shared paper
- Jennifer L. Armstrong, MD1 shared paper
Recent publications by Dr. Greenan
J Neurosurg Pediatr
See who Dr. Greenan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Greenan works with, so you can find a warm path to the right neurosurgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Krista N. Greenan has worked on 2 clinical trials
Dmand AI links Dr. Greenan to 2 clinical trials, 2 of them phase 2 studies. Conditions studied include Brain Injuries and Craniocerebral Trauma. Neuren Pharmaceuticals Limited sponsors the most, 2.
Conditions in Dr. Greenan's trials
- Brain Injuries
- Craniocerebral Trauma
Investigators on the most trials with Dr. Greenan
- James E. Boggan, MD2 shared trials
- Deborah Baker Diercks, MD2 shared trials
- Darrin J. Lee, MD2 shared trials
Recent clinical trials with Dr. Greenan
Study of NNZ-2566 in Patients With Traumatic Brain Injury Under EFIC (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Krista N. Greenan received $1,470 in industry payments from 2017 to 2023
CMS Open Payments shows 21 general payments to Dr. Greenan from 8 drug and device companies from 2017 to 2023. Travel and lodging make up the largest share, 48% of the total. Globus Medical, Inc. paid the most, $706.
General payments to Dr. Greenan by program year, 2017 to 2023
General payments to Dr. Greenan by kind, 2017 to 2023
- Travel and lodging$70648%
- Food and beverage$59641%
- Education$16811%
Companies that paid Dr. Greenan the most, 2017 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Krista N. Greenan has 4 awards and honors on record
Dmand AI lists 4 awards for Dr. Greenan, most recently Nursing Staff Award in 2012.
Awards and honors for Dr. Greenan
- 2012
- Nursing Staff Award
- 2006
- Pre-doctoral Research Fellowship
- 2003
- Alpha Epsilon Delta Honors Society
- 2001
- Helen A. Gaag Memorial Scholarship
Source: Dmand AI Professional Profile Data
Dr. Krista N. Greenan graduated from UC Davis School of Medicine
Dr. Greenan graduated from UC Davis School of Medicine in 2009. Dr. Greenan is a member of CNS.
- Medical school
- Board certified in neurological surgery
Source: Dmand AI Professional Profile Data
Dr. Krista N. Greenan accepts plans from 16 insurance carriers
Dr. Greenan is in network with 16 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Aetna
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Cigna
- HCSC
- Kaiser Permanente
- Aspirus Health Plan
- +8 more carriersWith a free account
Plan types Dr. Greenan accepts, by number of carriers
- PPO11
- Medicare10
- HMO9
- POS7
- EPO4
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Krista N. Greenan'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)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)Doctors and Clinicians Utilization Data (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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| 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. Krista N. Greenan
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. Krista N. Greenan's NPI number?
Dr. Krista N. Greenan's NPI number is 1801026992. It was assigned on July 23, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Krista N. Greenan?
Dr. Krista N. Greenan is a neurosurgeon in Colorado Springs, Colorado. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. Krista N. Greenan practice?
Dr. Greenan practices at 1400 E Boulder St, Colorado Springs, CO 80909. Dr. Greenan's primary practice is UCHealth Memorial Hospital Central in Colorado Springs, Colorado, part of UCHealth. Dmand AI also links Dr. Greenan to 1 group practice or clinic.
What is Dr. Krista N. Greenan's office phone number?
The practice phone on file for Dr. Greenan is (719) 365-5000.
What is Dr. Krista N. Greenan's medical license number?
Dr. Greenan holds Colorado license DR.0061162, one of the licenses on file in 2 states.
Which states has Dr. Krista N. Greenan been licensed in?
Dmand AI has state licenses on file for Dr. Greenan in Colorado (2018 to 2027) and California (2010 to 2021).
Which hospitals is Dr. Krista N. Greenan affiliated with?
Dr. Greenan practices at UCHealth Memorial Hospital Central in Colorado Springs, Colorado. Dr. Greenan is also affiliated with UCHealth Parkview Medical Center.
What medical group is Dr. Krista N. Greenan part of?
Dr. Greenan is linked to UCHealth Medical Group.
Does Dr. Krista N. Greenan accept Medicare?
Yes. CMS data shows Dr. Greenan billed Medicare for 68 services in 2024, and Dr. Greenan accepts Medicare assignment.
Does Dr. Krista N. Greenan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Greenan as offering telehealth services.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Krista N. Greenan see?
CMS counts 110 Medicare patients who saw Dr. Greenan in 2024, with an average age of 71.
Is Dr. Krista N. Greenan board certified?
Yes. Dr. Greenan is board certified in neurological surgery by the American Board of Neurological Surgery.
What services does Dr. Krista N. Greenan bill to Medicare?
In 2024, Dr. Greenan's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and office visit, new patient (99204).
Where did Dr. Krista N. Greenan go to medical school?
Dr. Greenan graduated from UC Davis School of Medicine in 2009.
What drugs does Dr. Krista N. Greenan prescribe most?
In 2023 Medicare Part D data, Dr. Greenan's most prescribed drugs by claims were Gabapentin.
Has Dr. Krista N. Greenan received payments from drug or device companies?
CMS Open Payments shows $1,470 in general payments to Dr. Greenan from 8 companies from 2017 to 2023. The largest total came from Globus Medical, Inc.
How long has Dr. Krista N. Greenan been practicing?
Dr. Greenan graduated from medical school in 2009, 17 years ago.
Does Dr. Krista N. Greenan do research?
Dmand AI links 3 publications to Dr. Greenan, published from 2017 to 2020. Dr. Greenan has worked on 2 clinical trials.
Who does Dr. Krista N. Greenan publish with?
Dr. Greenan's most frequent co-authors are Marike Zwienenberg, MD (2 shared papers), Jared D. Ament, MD, MPH (1 shared paper) and Jennifer L. Armstrong, MD (1 shared paper).
What insurance does Dr. Krista N. Greenan accept?
Dr. Greenan is in network with 16 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
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