John C. Lambert, M.D.
Internal Medicine Physician · Montrose, CO
John C. Lambert, M.D. is an internal medicine physician with a practice address in Montrose, Colorado, and NPI 1407859549, issued on May 23, 2005. Check the license (Colorado 18824, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- John C. Lambert
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 18824 CO
Self-reported in NPPES; status is on the state search - Practice location
- 3330 S Rio Grande Ave Ste 300, Montrose, CO 81401
- Phone
- (970) 249-7751
- Enumerated
- May 23, 2005
- Record last updated
- Nov 25, 2024
- Fax
- (970) 249-5029
- Medicaid ID
- 01188242 CO
- Medicare enrollment
- Enrolled (PECOS I20100111000802); accepts Medicare assignment
- Medical or professional school
- West Virginia University School Of Medicine, 1974
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Also registered at 3330 S Rio Grande Ave Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Zachary Barton, MDFamily Medicine Physician1740578780
- Michael Brezinsky, M.D.Internal Medicine Physician1245233378
- Erica Burns, CNP, FNP-BCFamily Nurse Practitioner1487044194
- Suzanne Carmody, FNPFamily Nurse Practitioner1326041443
- Greta Hoffman, PA-CPhysician Assistant1467912089
- Abraham Lee, MDFamily Medicine Physician1881660470
Verify John C. Lambert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 18824Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
23 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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: $23.43
1 payment: food and beverage; the largest payer was Meridian Bioscience Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- Montrose Memorial Hospital, IncMontrose, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John C. Lambert among 2,046 internal medicine physician records in Colorado
John C. Lambert, M.D. is one of 2,046 internal medicine physician records with a practice address in Colorado. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1974 · median 2006 among the 1,090 with a school on file
- Record last updated2024 · 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 207R00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 internal medicine physician records list a practice address in Montrose
They are 12 of the 757 NPPES records with a practice address in Montrose, and 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Montrose → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Andrew Bolton, M.D., M.P.HMontrose, CO 814011376961367
- Michael Brezinsky, M.D.Montrose, CO 814011245233378
- Christine Gieszl, MDMontrose, CO 814011336199066
- Kenneth Harris, MDMontrose, CO 814011184698516
- Carol Harrold, MDMontrose, CO 814011912959420
- Marietta King, NPMontrose, CO 814011790550804
- Bryce Lokey, MDMontrose, CO 814011811034184
- Steven Miller, M.D.Montrose, CO 814011538162649
Common questions
What is John C. Lambert, M.D.'s NPI number?
John C. Lambert, M.D.'s National Provider Identifier (NPI) is 1407859549, issued on May 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John C. Lambert, M.D. located?
The NPPES record lists a practice address at 3330 S Rio Grande Ave Ste 300, Montrose, CO, 81401. Phone: (970) 249-7751. Providers update this record themselves, so call before visiting.
How can I verify John C. Lambert, M.D.'s license?
NPPES lists Colorado license number 18824, 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 John C. Lambert, M.D. prescribe under Medicare Part D?
In 2024, John C. Lambert, M.D. had 23 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.