Cynthia L. Gryboski, MD
Interventional Cardiology Physician · Greeley, CO
Cynthia L. Gryboski, MD is an interventional cardiology physician with a practice address in Greeley, Colorado, and NPI 1548223316, issued on Apr 11, 2006. Check the license (Colorado 40070, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Cynthia L. Gryboski
- Credential
- MD
- Primary taxonomy
- Interventional Cardiology Physician 207RI0011X
- License number
- 40070 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1800 15TH St, Greeley, CO 80631
- Phone
- (970) 392-0900
- Enumerated
- Apr 11, 2006
- Record last updated
- Jul 9, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (970) 506-3796
- Medicaid ID
- 95735810 CO
- Entity
- Type 1 · individual
8 nearest interventional cardiology physician records → All 119 in Colorado → Look up another NPI →
Also registered at 1800 15TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Cynthia L. Gryboski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 40070Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average interventional cardiology physician in 2024
2,934 Medicare Part D claims for 437 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Atorvastatin Calcium290 claims
- Metoprolol Succinate285 claims
- Furosemide236 claims
- Metoprolol Tartrate207 claims
- Lisinopril199 claims
- Carvedilol182 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $39.14
2 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 6,394 providers of this specialty with any payment received $7,062.29 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Cynthia L. Gryboski among 119 interventional cardiology physician records in Colorado
Cynthia L. Gryboski, MD is one of 119 interventional cardiology physician records with a practice address in Colorado. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 55% newer
- In a Medicare fileYes · 93% of these records are
- In the CMS Doctors and Clinicians fileNo · 83% of these records are
- Record last updated2018 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0011X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Interventional Cardiology Physician providers in Colorado
There are 119 interventional cardiology physician records in Colorado.
All 119 in Colorado → Every provider in Greeley → Interventional Cardiology Physician nationwide →
The 8 interventional cardiology physician records with the nearest ZIP codes
- Scott Freeman, M.D.Greeley, CO 806311821484072
- Michael Kim, MDGreeley, CO 806311386677144
- Mahmoud Salem, MDGreeley, CO 806311932695541
- Behzad Molavi, M.D.Brighton, CO 806011306936885
- Shaheer Zulfiqar, M.D.Brighton, CO 806011881972230
- Errol Inci, M.D.Loveland, CO 805381750734349
- Shivanshu Madan, M.D.Loveland, CO 805381245590108
- Rahul Sawhney, DOLoveland, CO 805381962857292
Common questions
What is Cynthia L. Gryboski, MD's NPI number?
Cynthia L. Gryboski, MD's National Provider Identifier (NPI) is 1548223316, issued on Apr 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cynthia L. Gryboski, MD located?
The NPPES record lists a practice address at 1800 15TH St, Greeley, CO, 80631. Phone: (970) 392-0900. Providers update this record themselves, so call before visiting.
How can I verify Cynthia L. Gryboski, MD's license?
NPPES lists Colorado license number 40070, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Cynthia L. Gryboski, MD prescribe under Medicare Part D?
In 2024, Cynthia L. Gryboski, MD had 2,934 Medicare Part D claims for 437 beneficiaries; the average among interventional cardiology physician prescribers was 3,179. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.