NPI registry status
Active
2026 NPPES data Child & Adolescent Psychiatry Physician NPI 1710193495 M.D.
Verify on CMS → Ralph Clark, M.D.
Child & Adolescent Psychiatry Physician in Littleton, Colorado.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,300 in Child & Adolescent Psychiatry Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
140
Medicare Part D claims · Child & Adolescent Psychiatry Physician avg: 608
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Ralph Clark, M.D. filed 140 Medicare Part D claims in 2024 as a Child & Adolescent Psychiatry Physician in Littleton, Colorado, prescribing 91% generic.
- 140
- Part D claims, 2024
- 91%
- generic prescribing
- ≥34th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Ralph Clark, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1710193495), first enumerated 05/16/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 140 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1710193495 · Child & Adolescent Psychiatry Physician
NPI-10 · ENUM-MID · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1710193495
- ENUM-MID 2007
- TAX-MID 6K Child &
- RX-LIGHT 140
- BOOK-THIN 159 in Colorado
- PHOTO-ENUM Barry Holzer · 2007
Ralph Clark, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
140 ≥ 34th percentile 34% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Ralph Clark, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Ralph Clark, M.D.?
Quality data not reportedPrimary specialty
Child & Adolescent Psychiatry Physician
Medicare Part D claims
140 77% vs specialty avg
Specialty distribution in Colorado
How Child & Adolescent Psychiatry Physician compares to other specialties among Colorado providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Child & Adolescent Psychiatry Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1710193495 |
|---|---|
| Specialty | Child & Adolescent Psychiatry Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/16/2007 |
Brand vs generic prescribing mix · Generic-heavy
Ralph Clark, M.D. - brand share 9.0%
Child & Adolescent Psychiatry Physician average
9% brand-name claims vs 91% generic, on 140 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
140
Total Claims
$11K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 248
- Total Day Supply
- 7,276
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $4K
- Generic Drug Cost
- $6K
Patient Demographics
- Average Patient Age
- 61.0 years
- Avg HCC Risk Score
- 0.60
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Ralph Clark, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Quetiapine Fumarate
Quetiapine Fumarate
25 claims
- Bupropion Xl
Bupropion Xl
18 claims
- Sertraline Hcl
Sertraline Hcl
17 claims
- Trazodone Hcl
Trazodone Hcl
13 claims
- Zoloft
Zoloft
13 claims
- Fluoxetine Hcl
Fluoxetine Hcl
12 claims
| Drug | Claims |
|---|---|
| Quetiapine Fumarate | 25 |
| Bupropion Xl Bupropion Hcl | 18 |
| Sertraline Hcl | 17 |
| Trazodone Hcl | 13 |
| Zoloft Sertraline Hcl | 13 |
| Fluoxetine Hcl | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Child & Adolescent Psychiatry Physician in CO →
All providers in Colorado →
Compare specialties →
Child & Adolescent Psychiatry Physician Overview
How Ralph Clark, M.D. fits within the Child & Adolescent Psychiatry Physician landscape nationally.
6,300
Child & Adolescent Psychiatry Physician Providers in US
54
States with Child & Adolescent Psychiatry Physician
608
Avg Claims per Provider
Ralph Clark, M.D.'s 140 claims are below the specialty average of 608.
Nationwide Child & Adolescent Psychiatry Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Clark, both outside Colorado so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Child & Adolescent Psychiatry Physician Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Clark.
One of 159 Child & Adolescent Psychiatry Physician providers enrolled in Colorado, 5 are shown here.
Amelia Abbott-Frey
Aurora, CO
Dr. Heather Adams
D.O.
Aurora, CO
Dr. Patricia Al-Adsani
MD
Windsor, CO
Dr. Jeffrey Almony
MD
Boulder, CO
Kandace Andorka
Denver, CO
Compare Child & Adolescent Psychiatry Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Ralph Clark, M.D.'s specialty? ▼
Ralph Clark, M.D. specializes in Child & Adolescent Psychiatry Physician and practices in Littleton, Colorado. Credentials: M.D..
How much does Ralph Clark, M.D. prescribe under Medicare Part D? ▼
In 2024, Ralph Clark, M.D. wrote 140 Medicare Part D claims totaling $11K in drug costs for N/A beneficiaries.
Where is Ralph Clark, M.D. located? ▼
Ralph Clark, M.D. is located at 7720 S BROADWAY, Littleton, CO, 80122. Phone: (303) 707-2839.
What is Ralph Clark, M.D.'s NPI number? ▼
Ralph Clark, M.D.'s National Provider Identifier (NPI) is 1710193495, issued on 05/16/2007.
Does Ralph Clark, M.D. prescribe more brand-name or generic drugs? ▼
Ralph Clark, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $4K in brand drug costs.
How many Child & Adolescent Psychiatry Physician providers are there in the US? ▼
There are 6,300 Child & Adolescent Psychiatry Physician providers across 54 states in the US. The average Child & Adolescent Psychiatry Physician provider writes 608 Medicare Part D claims per year.
What drugs does Ralph Clark, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Ralph Clark, M.D.'s most frequently prescribed drugs include Quetiapine Fumarate, Bupropion Xl, Sertraline Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ralph Clark, M.D. accept Medicare? ▼
Ralph Clark, M.D. appears in CMS Medicare data with 140 Part D claims and N/A Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ralph Clark, M.D.'s credentials? ▼
Ralph Clark, M.D.'s NPI is 1710193495 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.