Clifford Lorin Zeller, M.D.
Psychiatry Physician · Denver, CO
Clifford Lorin Zeller, M.D. is a psychiatry physician with a practice address in Denver, Colorado, and NPI 1962580001, issued on Nov 2, 2006. Check the license (Colorado DR18448, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Clifford Lorin Zeller
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- DR18448 CO
45116 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 5031 S Ulster St, Denver, CO 80237
- Phone
- (720) 381-0015
- Enumerated
- Nov 2, 2006
- Record last updated
- Oct 11, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (720) 381-0149
- Medicaid IDs
- 16437373 CO
647945 AZ - Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 990 in Colorado → Look up another NPI →
Also registered at 5031 S Ulster St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Clifford Lorin Zeller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR18448Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average psychiatry physician in 2024
319 Medicare Part D claims for 15 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Trazodone Hcl62 claims
- Escitalopram Oxalate53 claims
- Gabapentin47 claims
- Lamotrigine41 claims
- Bupropion Hcl Sr21 claims
- Aripiprazole19 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.
Clifford Lorin Zeller among 990 psychiatry physician records in Colorado
Clifford Lorin Zeller, M.D. is one of 990 psychiatry physician records with a practice address in Colorado. 65% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 62% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 35% of these records are
- Record last updated2013 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
291 psychiatry physician records list a practice address in Denver
They are 291 of the 25,068 NPPES records with a practice address in Denver, and 990 psychiatry physician records in Colorado.
All 990 in Colorado → Every provider in Denver → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Kirk Anderson, MDDenver, CO 802371205050143
- Mark Dilger, M.DDenver, CO 802371679745087
- Natalie Hogan, MDDenver, CO 802371598779506
- Scott Humphreys, MDDenver, CO 802371447264593
- Therese Marumoto, M.D.Denver, CO 802371952381220
- Joel Miller, M.D.Denver, CO 802371295947547
- Minh Nguyen, DODenver, CO 802371720575566
- Alfred Richter, MDDenver, CO 802371023009081
Common questions
What is Clifford Lorin Zeller, M.D.'s NPI number?
Clifford Lorin Zeller, M.D.'s National Provider Identifier (NPI) is 1962580001, issued on Nov 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Clifford Lorin Zeller, M.D. located?
The NPPES record lists a practice address at 5031 S Ulster St, Denver, CO, 80237. Phone: (720) 381-0015. Providers update this record themselves, so call before visiting.
How can I verify Clifford Lorin Zeller, M.D.'s license?
NPPES lists Colorado license number DR18448, 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 Clifford Lorin Zeller, M.D. prescribe under Medicare Part D?
In 2024, Clifford Lorin Zeller, M.D. had 319 Medicare Part D claims for 15 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.