Elisabeth Mercedes Merrill, MD
Family Medicine Physician · Longmont, CO
Elisabeth Mercedes Merrill, MD is a family medicine physician with a practice address in Longmont, Colorado, and NPI 1447670328, issued on Apr 18, 2014. Check the license (Colorado DR.0056897, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Elisabeth Mercedes Merrill
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- DR.0056897 CO
Self-reported in NPPES; status is on the state search - Practice location
- 220 E Rogers RD, Longmont, CO 80501
- Phone
- (303) 697-2583
- Enumerated
- Apr 18, 2014
- Record last updated
- Sep 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20171227002653); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 220 E Rogers RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Elisabeth Mercedes Merrill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0056897Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average family medicine physician in 2024
2,274 Medicare Part D claims for 166 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 32 claims were for opioids.
Most prescribed
- Atorvastatin Calcium168 claims
- Levothyroxine Sodium111 claims
- Gabapentin76 claims
- Albuterol Sulfate Hfa59 claims
- Lisinopril52 claims
- Baclofen49 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: $14.13
1 payment: food and beverage; the largest payer was Pfizer Inc. The 55,478 providers of this specialty with any payment received $902.55 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
- Salud Family HealthLongmont, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Elisabeth Mercedes Merrill among 3,563 family medicine physician records in Colorado
Elisabeth Mercedes Merrill, MD is one of 3,563 family medicine physician records with a practice address in Colorado. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 74% of them.
- NPI issued2014 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2014 · median 2008 among the 2,077 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
73 family medicine physician records list a practice address in Longmont
They are 73 of the 2,381 NPPES records with a practice address in Longmont, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Longmont → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Eric Benson, MDLongmont, CO 805011487658878
- David Britt, MDLongmont, CO 805011427052836
- Catherine Cavender, MDLongmont, CO 805011295739613
- Mary Faini, MDLongmont, CO 805011144222373
- James Freudenburg, MDLongmont, CO 805011710982137
- John Fritz, D.O.Longmont, CO 805011487655478
- Mark Hinman, M.D.Longmont, CO 805011750385415
- Richard Jacobi, MDLongmont, CO 805011639174733
Common questions
What is Elisabeth Mercedes Merrill, MD's NPI number?
Elisabeth Mercedes Merrill, MD's National Provider Identifier (NPI) is 1447670328, issued on Apr 18, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Elisabeth Mercedes Merrill, MD located?
The NPPES record lists a practice address at 220 E Rogers RD, Longmont, CO, 80501. Phone: (303) 697-2583. Providers update this record themselves, so call before visiting.
How can I verify Elisabeth Mercedes Merrill, MD's license?
NPPES lists Colorado license number DR.0056897, 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 Elisabeth Mercedes Merrill, MD prescribe under Medicare Part D?
In 2024, Elisabeth Mercedes Merrill, MD had 2,274 Medicare Part D claims for 166 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.