NPI registry status
Active
2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1962766980 MD
Verify on CMS → Hugo Rivadeneyra Pasten, MD
Endocrinology, Diabetes & Metabolism Physician in Ames, Iowa.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 7,871 in Endocrinology, Diabetes & Metabolism 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
5K
Medicare Part D claims · 448 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
31%
generic claims · 61% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$17.2
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Hugo Rivadeneyra Pasten, MD filed 4,725 Medicare Part D claims in 2023 as an Endocrinology, Diabetes & Metabolism Physician in Ames, Iowa, prescribing 31% generic.
- 5K
- Part D claims, 2023
- 31%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥93rd
- 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 Hugo Rivadeneyra Pasten, MD
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 1962766980), first enumerated 06/25/2012.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 4,725 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
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$17.2 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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 1962766980 · Endocrinology, Diabetes & Metabolism Physician
NPI-10 · ENUM-MID · TAX-MID · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1962766980
- ENUM-MID 2012
- TAX-MID 8K Endocrinology, Diabetes
- RX-MID 4,725
- BOOK-THIN 28 in Iowa
- PHOTO-ENUM Raquel Ong · 2012
Hugo Rivadeneyra Pasten, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
4,725 ≥ 93rd percentile 93% of 1,370,886 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 · 2023
✓
Board certification likely (heuristic, not verified)
Hugo Rivadeneyra Pasten, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Hugo Rivadeneyra Pasten, MD?
Quality data not reportedPrimary specialty
Endocrinology, Diabetes & Metabolism Physician
Medicare Part D claims
4,725 79% vs specialty avg
Specialty distribution in Iowa
How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among Iowa 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 Endocrinology, Diabetes & Metabolism 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 | 1962766980 |
|---|---|
| Specialty | Endocrinology, Diabetes & Metabolism Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/25/2012 |
Hospital and facility affiliations
Facilities where Hugo Rivadeneyra Pasten, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Mcfarland Clinic PC
Ames, IA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Hugo Rivadeneyra Pasten, MD. Source: openpaymentsdata.cms.gov.
Total received
$17
Largest payer
Abbott Laboratories
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Brand-heavy
Hugo Rivadeneyra Pasten, MD - brand share 61.0%
Endocrinology, Diabetes & Metabolism Physician average
61% brand-name claims vs 31% generic, on 4,725 2023 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 2023.
4,725
Total Claims
$3.3M
Total Drug Cost
448
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 9,145
- Total Day Supply
- 269,570
- Brand vs Generic
- 61% brand / 31% generic
- Brand Drug Cost
- $3.1M
- Generic Drug Cost
- $36K
Patient Demographics
- Average Patient Age
- 70.6 years
- Avg HCC Risk Score
- 1.63
- Gender Split
- 54% female / 46% male
- Age Distribution
- <65: 69, 65-74: 219, 75-84: 143, 85+: 17
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Hugo Rivadeneyra Pasten, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ozempic
Ozempic
483 claims
- Levothyroxine Sodium
Levothyroxine Sodium
370 claims
- Jardiance
Jardiance
293 claims
- Metformin Hcl
Metformin Hcl
266 claims
- Novolog Flexpen
Novolog Flexpen
256 claims
- Glimepiride
Glimepiride
237 claims
- Tresiba Flextouch … 161
Tresiba Flextouch U-200
161 claims
- Metformin Hcl Er 141
Metformin Hcl Er
141 claims
| Drug | Claims |
|---|---|
| Ozempic Semaglutide | 483 |
| Levothyroxine Sodium | 370 |
| Jardiance Empagliflozin | 293 |
| Metformin Hcl | 266 |
| Novolog Flexpen Insulin Aspart | 256 |
| Glimepiride | 237 |
| Tresiba Flextouch U-200 Insulin Degludec | 161 |
| Metformin Hcl Er Metformin Hcl | 141 |
| Trulicity Dulaglutide | 131 |
| Humalog Kwikpen U-100 Insulin Lispro | 105 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Endocrinology, Diabetes & Metabolism Physician in IA →
All providers in Iowa →
Compare specialties →
Endocrinology, Diabetes & Metabolism Physician Overview
How Hugo Rivadeneyra Pasten, MD fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.
7,871
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider
Hugo Rivadeneyra Pasten, MD's 4,725 claims are above the specialty average of 2,639.
Nationwide Endocrinology, Diabetes & Metabolism Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Rivadeneyra Pasten, both outside Iowa so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2012)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Endocrinology, Diabetes & Metabolism Physician Providers in Iowa
Other clinicians with the same primary specialty enrolled in Iowa, drawn from the same CMS NPPES roster as Rivadeneyra Pasten.
One of 28 Endocrinology, Diabetes & Metabolism Physician providers enrolled in Iowa, 5 are shown here.
Dr. Rami Almokayyad
MD
Ames, IA
Dr. Anuj Bhargava
MD
Des Moines, IA
Dr. Scott Brock
M.D.
Dubuque, IA
Dr. Richard Carano
MD
Ames, IA
Dr. Ayotunde Dokun
MD PHD
Iowa City, IA
Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Hugo Rivadeneyra Pasten, MD's specialty? ▼
Hugo Rivadeneyra Pasten, MD specializes in Endocrinology, Diabetes & Metabolism Physician and practices in Ames, Iowa. Credentials: MD.
How much does Hugo Rivadeneyra Pasten, MD prescribe under Medicare Part D? ▼
In 2023, Hugo Rivadeneyra Pasten, MD wrote 4,725 Medicare Part D claims totaling $3.3M in drug costs for 448 beneficiaries.
Where is Hugo Rivadeneyra Pasten, MD located? ▼
Hugo Rivadeneyra Pasten, MD is located at 1015 DUFF AVENUE, Ames, IA, 50010. Phone: (515) 239-4440.
What is Hugo Rivadeneyra Pasten, MD's NPI number? ▼
Hugo Rivadeneyra Pasten, MD's National Provider Identifier (NPI) is 1962766980, issued on 06/25/2012.
Does Hugo Rivadeneyra Pasten, MD prescribe more brand-name or generic drugs? ▼
Hugo Rivadeneyra Pasten, MD's prescribing is 61% brand-name and 31% generic drugs by claim count, with $3.1M in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US? ▼
There are 7,871 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does Hugo Rivadeneyra Pasten, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Hugo Rivadeneyra Pasten, MD's most frequently prescribed drugs include Ozempic, Levothyroxine Sodium, Jardiance. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Hugo Rivadeneyra Pasten, MD accept Medicare? ▼
Hugo Rivadeneyra Pasten, MD appears in CMS Medicare data with 4,725 Part D claims and 448 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Hugo Rivadeneyra Pasten, MD's credentials? ▼
Hugo Rivadeneyra Pasten, MD's NPI is 1962766980 with credentials MD. 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 (2023). 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 April 2026 (NPPES) / 2023 (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 May 2026.