NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1093862864 M.D.
Verify on CMS → Daniel Holtan, M.D.
Family Medicine 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 147,760 in Family Medicine 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
3K
Medicare Part D claims · 234 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
84%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Daniel Holtan, M.D. filed 3,431 Medicare Part D claims in 2023 as a Family Medicine Physician in Washington, District of Columbia, prescribing 84% generic.
- 3K
- Part D claims, 2023
- 84%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥90th
- 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.
Daniel Holtan, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,431 ≥ 90th percentile 90% 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)
Daniel Holtan, M.D. 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 Daniel Holtan, M.D.?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
3,431 0% vs specialty avg
Specialty distribution in District of Columbia
How Family Medicine Physician compares to other specialties among District of Columbia 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 Family Medicine 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).
Daniel Holtan, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 3720 MARTIN LUTHER KING JR AVE SE, Washington, DC, 20032, with a listed phone of (202) 279-1800. NPI 1093862864 was issued on 01/04/2007.
Medicare Part D records for calendar year 2023 show 3,431 prescription claims written by this provider, covering 234 Medicare beneficiaries and totaling roughly $577K in drug spend, split 15% brand-name and 84% generic by claim count.
Family Medicine Physician is a high-volume specialty nationwide, with 147,760 enrolled providers across 56 states and an average of 3,418 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 | 1093862864 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 01/04/2007 |
Hospital and facility affiliations
Facilities where Daniel Holtan, 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.
Neighborhood Health
Alexandria, VA
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
Daniel Holtan, M.D. - brand share 15.0%
Family Medicine Physician average
15% brand-name claims vs 84% generic, on 3,431 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.
3,431
Total Claims
$577K
Total Drug Cost
234
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 6,793
- Total Day Supply
- 199,460
- Brand vs Generic
- 15% brand / 84% generic
- Brand Drug Cost
- $494K
- Generic Drug Cost
- $81K
- Antibiotic Claims
- 34
Patient Demographics
- Average Patient Age
- 60.9 years
- Avg HCC Risk Score
- 1.21
- Gender Split
- 48% female / 52% male
- Age Distribution
- <65: 122, 65-74: 88, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Daniel Holtan, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
358 claims
- Amlodipine Besylate
Amlodipine Besylate
204 claims
- Metformin Hcl 135
Metformin Hcl
135 claims
- Lisinopril 126
Lisinopril
126 claims
- Pantoprazole Sodium 104
Pantoprazole Sodium
104 claims
- Albuterol Sulfate … 88
Albuterol Sulfate Hfa
88 claims
- Levothyroxine Sodium 81
Levothyroxine Sodium
81 claims
- Glipizide 71
Glipizide
71 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 358 |
| Amlodipine Besylate | 204 |
| Metformin Hcl | 135 |
| Lisinopril | 126 |
| Pantoprazole Sodium | 104 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 88 |
| Levothyroxine Sodium | 81 |
| Glipizide | 71 |
| Hydrochlorothiazide | 69 |
| Jardiance Empagliflozin | 69 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Family Medicine Physician in DC →
All providers in District of Columbia →
Compare specialties →
Family Medicine Physician Overview
How Daniel Holtan, M.D. fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Daniel Holtan, M.D.'s 3,431 claims are above the specialty average of 3,418.
Nearby Family Medicine 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 Holtan.
Dr. Ghulam Abbas
M.D
Washington, DC
Dr. James Abbott
M.D.
Bolling Afb, DC
Dr. Sara Acosta
MD
Washington, DC
Dr. Roscoe Adams
MD
Washington, DC
Dr. Babafemi Adenuga
MD
Washington, DC
Compare Family Medicine 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 Family Medicine 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 Daniel Holtan, M.D.'s specialty? ▼
Daniel Holtan, M.D. specializes in Family Medicine Physician and practices in Washington, District of Columbia. Credentials: M.D..
How much does Daniel Holtan, M.D. prescribe under Medicare Part D? ▼
In 2023, Daniel Holtan, M.D. wrote 3,431 Medicare Part D claims totaling $577K in drug costs for 234 beneficiaries.
Where is Daniel Holtan, M.D. located? ▼
Daniel Holtan, M.D. is located at 3720 MARTIN LUTHER KING JR AVE SE, Washington, DC, 20032. Phone: (202) 279-1800.
What is Daniel Holtan, M.D.'s NPI number? ▼
Daniel Holtan, M.D.'s National Provider Identifier (NPI) is 1093862864, issued on 01/04/2007.
Does Daniel Holtan, M.D. prescribe more brand-name or generic drugs? ▼
Daniel Holtan, M.D.'s prescribing is 15% brand-name and 84% generic drugs by claim count, with $494K in brand drug costs.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Daniel Holtan, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Daniel Holtan, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Daniel Holtan, M.D. accept Medicare? ▼
Daniel Holtan, M.D. appears in CMS Medicare data with 3,431 Part D claims and 234 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Daniel Holtan, M.D.'s credentials? ▼
Daniel Holtan, M.D.'s NPI is 1093862864 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.
- 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.