NPI registry status
Active
2026 NPPES data Anesthesiology Physician NPI 1326338401 M.D.
Verify on CMS → Michael Kiefer, M.D.
Anesthesiology Physician in Washington, District of Columbia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 56,432 in Anesthesiology 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
2K
Medicare Part D claims · 414 beneficiaries · Anesthesiology Physician avg: 860
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
CMS neutral threshold · no category scores published
Industry payments
$1.2K
39 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Michael Kiefer, M.D. carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 2,485 Medicare Part D claims in 2023.
- 75/100
- CMS neutral score · not measured
- 2K
- Part D claims, 2023
- 94%
- 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.
Michael Kiefer, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,485 ≥ 86th percentile 86% 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)
Michael Kiefer, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Michael Kiefer, M.D.?
CMS neutral score, not measuredPrimary specialty
Anesthesiology Physician
Medicare Part D claims
2,485 189% vs specialty avg
MIPS final score
75/100
Specialty distribution in District of Columbia
How Anesthesiology Physician compares to other specialties among District of Columbia 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).
Michael Kiefer, M.D. appears in the CMS NPPES registry as an Anesthesiology Physician provider holding M.D. credentials at 2021 K ST NW STE 605, Washington, DC, 20006, with a listed phone of (202) 935-6980. NPI 1326338401 was issued on 04/11/2011.
Medicare Part D records for calendar year 2023 show 2,485 prescription claims written by this provider, covering 414 Medicare beneficiaries and totaling roughly $144K in drug spend, split 6% brand-name and 94% generic by claim count, with an opioid prescribing rate of 48.5%. On the CMS Merit-based Incentive Payment System, this provider carries a Final Score of 75/100 for the 2023 performance year, but CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score: this is the neutral performance threshold CMS assigns where nothing was scored, so it is not comparable with clinicians whose score was measured.
Anesthesiology Physician is a high-volume specialty nationwide, with 56,432 enrolled providers across 56 states and an average of 860 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1326338401 |
|---|---|
| Specialty | Anesthesiology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 04/11/2011 |
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: Group practice
Hospital and facility affiliations
Facilities where Michael Kiefer, M.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.
Georgetown Pain Management LLC
Greenbelt, MD
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 Michael Kiefer, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$1.2K
Largest payer
Nevro Corp.
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 · Generic-heavy
Michael Kiefer, M.D. - brand share 6.0%
Anesthesiology Physician average
6% brand-name claims vs 94% generic, on 2,485 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.
2,485
Total Claims
$144K
Total Drug Cost
414
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,641
- Total Day Supply
- 72,776
- Brand vs Generic
- 6% brand / 94% generic
- Brand Drug Cost
- $49K
- Generic Drug Cost
- $95K
- Opioid Claims
- 1,205 (48.5% rate)
Patient Demographics
- Average Patient Age
- 65.3 years
- Avg HCC Risk Score
- 2.03
- Gender Split
- 75% female / 25% male
- Age Distribution
- <65: 165, 65-74: 176, 75-84: 53, 85+: 20
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Michael Kiefer, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxycodone-Acetamin…
Oxycodone-Acetaminophen
447 claims
- Oxycodone Hcl
Oxycodone Hcl
221 claims
- Tizanidine Hcl
Tizanidine Hcl
200 claims
- Gabapentin 167
Gabapentin
167 claims
- Duloxetine Hcl 166
Duloxetine Hcl
166 claims
- Pregabalin 127
Pregabalin
127 claims
- Lidocaine 122
Lidocaine
122 claims
- Hydrocodone-Acetam… 115
Hydrocodone-Acetaminophen
115 claims
| Drug | Claims |
|---|---|
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 447 |
| Oxycodone Hcl | 221 |
| Tizanidine Hcl | 200 |
| Gabapentin | 167 |
| Duloxetine Hcl | 166 |
| Pregabalin | 127 |
| Lidocaine | 122 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 115 |
| Morphine Sulfate Er Morphine Sulfate | 92 |
| Diclofenac Sodium | 84 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Anesthesiology Physician Overview
How Michael Kiefer, M.D. fits within the Anesthesiology Physician landscape nationally.
56,432
Anesthesiology Physician Providers in US
56
States with Anesthesiology Physician
860
Avg Claims per Provider
Michael Kiefer, M.D.'s 2,485 claims are above the specialty average of 860.
Nearby Anesthesiology Physician Providers in District of Columbia
Other clinicians with the same primary specialty enrolled in District of Columbia, drawn from the same CMS NPPES roster as Kiefer.
One of 272 Anesthesiology Physician providers enrolled in District of Columbia, 5 are shown here.
Dr. Hassan Adeniji-Adele
MD
Washington, DC
Dr. Sharad Agrawal
M.D.
Washington, DC
Dr. Keung Ahn
MD
Washington, DC
Dr. Kyung Ahn
M.D.
Washington, DC
Dr. Ehigiator Akhigbe
M.D.
Washington, DC
Compare Anesthesiology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the District of Columbia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Anesthesiology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore District of Columbia
Frequently Asked Questions
What is Michael Kiefer, M.D.'s specialty? ▼
Michael Kiefer, M.D. specializes in Anesthesiology Physician and practices in Washington, District of Columbia. Credentials: M.D..
How much does Michael Kiefer, M.D. prescribe under Medicare Part D? ▼
In 2023, Michael Kiefer, M.D. wrote 2,485 Medicare Part D claims totaling $144K in drug costs for 414 beneficiaries.
What is Michael Kiefer, M.D.'s Medicare quality score? ▼
Michael Kiefer, M.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 Michael Kiefer, M.D. located? ▼
Michael Kiefer, M.D. is located at 2021 K ST NW STE 605, Washington, DC, 20006. Phone: (202) 935-6980.
What is Michael Kiefer, M.D.'s NPI number? ▼
Michael Kiefer, M.D.'s National Provider Identifier (NPI) is 1326338401, issued on 04/11/2011.
Does Michael Kiefer, M.D. prescribe more brand-name or generic drugs? ▼
Michael Kiefer, M.D.'s prescribing is 6% brand-name and 94% generic drugs by claim count, with $49K in brand drug costs.
Does Michael Kiefer, M.D. prescribe opioids? ▼
Yes, Michael Kiefer, M.D. had 1,205 opioid claims in 2023 with an opioid prescribing rate of 48.5%.
How many Anesthesiology Physician providers are there in the US? ▼
There are 56,432 Anesthesiology Physician providers across 56 states in the US. The average Anesthesiology Physician provider writes 860 Medicare Part D claims per year.
What drugs does Michael Kiefer, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Michael Kiefer, M.D.'s most frequently prescribed drugs include Oxycodone-Acetaminophen, Oxycodone Hcl, Tizanidine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Kiefer, M.D. accept Medicare? ▼
Michael Kiefer, M.D. appears in CMS Medicare data with 2,485 Part D claims and 414 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Kiefer, M.D.'s credentials? ▼
Michael Kiefer, M.D.'s NPI is 1326338401 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 (2023). 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 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.