NPI registry status
Active
2026 NPPES data Radiation Oncology Physician NPI 1770744716 M.D., PH.D.
Verify on CMS → Ana Kiess, M.D., PH.D.
Radiation Oncology Physician in Baltimore, Maryland.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,141 in Radiation Oncology 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
97
Medicare Part D claims · 38 beneficiaries · Radiation Oncology Physician avg: 135
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
CMS neutral threshold · no category scores published
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Ana Kiess, M.D., PH.D. carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 97 Medicare Part D claims in 2024.
- 75/100
- CMS neutral score · not measured
- 97
- Part D claims, 2024
- 80%
- generic prescribing
- Likely
- board-certified (heuristic)
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 Ana Kiess, M.D., PH.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 1770744716), first enumerated 06/23/2008.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 97 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
CMS assigned a neutral MIPS final score of 75/100 where no performance category was scored — not a measured quality rank.
Source: CMS Quality Payment Program
- 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
3 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- 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 1770744716 · Radiation Oncology Physician
NPI-10 · ENUM-MID · TAX-MID · MIPS-NEUTRAL · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1770744716
- ENUM-MID 2008
- TAX-MID 6K Radiation Oncology
- MIPS-NEUTRAL 75/100
- RX-TRACE 97
- BOOK-THIN 114 in Maryland
- PHOTO-ENUM Sheena Jain · 2008
Ana Kiess, M.D., PH.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
97 ≥ 0th percentile 0% 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 certification likely (heuristic, not verified)
Ana Kiess, M.D., PH.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 3 hospital affiliations - 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 Ana Kiess, M.D., PH.D.?
CMS neutral score, not measuredPrimary specialty
Radiation Oncology Physician
Medicare Part D claims
97 28% vs specialty avg
MIPS final score
75/100
Specialty distribution in Maryland
How Radiation Oncology Physician compares to other specialties among Maryland providers
MIPS score not measured
CMS assigned a neutral 75/100 threshold
CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.
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 | 1770744716 |
|---|---|
| Specialty | Radiation Oncology Physician |
| Credentials | M.D., PH.D. |
| Gender | Female |
| NPI Issued | 06/23/2008 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
CMS neutral threshold · not measured
Reporting: Individual
Hospital and facility affiliations
Facilities where Ana Kiess, M.D., PH.D. 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.
According to CMS billing records, Ana Kiess, M.D., PH.D. is affiliated with 3 Medicare-billing facilities across 2 states.
Johns Hopkins University
Baltimore, MD
Johns Hopkins University
Washington, DC
Johns Hopkins University
Washington, DC
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
Ana Kiess, M.D., PH.D. - brand share 20.0%
Radiation Oncology Physician average
20% brand-name claims vs 80% generic, on 97 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.
97
Total Claims
$41K
Total Drug Cost
38
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 109.133
- Total Day Supply
- 2,686
- Brand vs Generic
- 20% brand / 80% generic
- Brand Drug Cost
- $40K
- Generic Drug Cost
- $1K
- Opioid Claims
- 20 (20.6% rate)
Patient Demographics
- Average Patient Age
- 72.6 years
- Avg HCC Risk Score
- 2.17
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Ana Kiess, M.D., PH.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Orgovyx
Orgovyx
15 claims
- Oxycodone Hcl
Oxycodone Hcl
12 claims
- Venlafaxine Hcl Er
Venlafaxine Hcl Er
12 claims
- Tamsulosin Hcl
Tamsulosin Hcl
11 claims
| Drug | Claims |
|---|---|
| Orgovyx Relugolix | 15 |
| Oxycodone Hcl | 12 |
| Venlafaxine Hcl Er Venlafaxine Hcl | 12 |
| Tamsulosin Hcl | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Radiation Oncology Physician Overview
How Ana Kiess, M.D., PH.D. fits within the Radiation Oncology Physician landscape nationally.
6,141
Radiation Oncology Physician Providers in US
53
States with Radiation Oncology Physician
135
Avg Claims per Provider
Ana Kiess, M.D., PH.D.'s 97 claims are below the specialty average of 135.
Nationwide Radiation Oncology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Kiess, both outside Maryland so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (75 here).
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Radiation Oncology Physician Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Kiess.
One of 114 Radiation Oncology Physician providers enrolled in Maryland, 5 are shown here.
Dr. Sahaja Acharya
M.D.
Baltimore, MD
Dr. Sara Alcorn
M.D.
Baltimore, MD
Dr. Neha Amin
MD
Bel Air, MD
Dr. Pradip Amin
M.D.
Baltimore, MD
Dr. Luther Ampey
M.D.
Olney, MD
Compare Radiation Oncology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Ana Kiess, M.D., PH.D.'s specialty? ▼
Ana Kiess, M.D., PH.D. specializes in Radiation Oncology Physician and practices in Baltimore, Maryland. Credentials: M.D., PH.D..
How much does Ana Kiess, M.D., PH.D. prescribe under Medicare Part D? ▼
In 2024, Ana Kiess, M.D., PH.D. wrote 97 Medicare Part D claims totaling $41K in drug costs for 38 beneficiaries.
What is Ana Kiess, M.D., PH.D.'s Medicare quality score? ▼
Ana Kiess, M.D., PH.D. has a CMS MIPS Final Score of 75/100. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Ana Kiess, M.D., PH.D. located? ▼
Ana Kiess, M.D., PH.D. is located at 401 S BROADWAY, Baltimore, MD, 21231. Phone: (443) 287-7528.
What is Ana Kiess, M.D., PH.D.'s NPI number? ▼
Ana Kiess, M.D., PH.D.'s National Provider Identifier (NPI) is 1770744716, issued on 06/23/2008.
Does Ana Kiess, M.D., PH.D. prescribe more brand-name or generic drugs? ▼
Ana Kiess, M.D., PH.D.'s prescribing is 20% brand-name and 80% generic drugs by claim count, with $40K in brand drug costs.
Does Ana Kiess, M.D., PH.D. prescribe opioids? ▼
Yes, Ana Kiess, M.D., PH.D. had 20 opioid claims in 2024 with an opioid prescribing rate of 20.6%.
How many Radiation Oncology Physician providers are there in the US? ▼
There are 6,141 Radiation Oncology Physician providers across 53 states in the US. The average Radiation Oncology Physician provider writes 135 Medicare Part D claims per year.
What drugs does Ana Kiess, M.D., PH.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Ana Kiess, M.D., PH.D.'s most frequently prescribed drugs include Orgovyx, Oxycodone Hcl, Venlafaxine Hcl Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ana Kiess, M.D., PH.D. accept Medicare? ▼
Ana Kiess, M.D., PH.D. appears in CMS Medicare data with 97 Part D claims and 38 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ana Kiess, M.D., PH.D.'s credentials? ▼
Ana Kiess, M.D., PH.D.'s NPI is 1770744716 with credentials M.D., PH.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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.