NPPES file of Aug 9, 2026

Alf Karl Adler, MD

Obstetrics & Gynecology Physician · Dumfries, VA

Alf Karl Adler, MD is an obstetrics & gynecology physician with a practice address in Dumfries, Virginia, and NPI 1396856860, issued on Aug 31, 2006. Check the license (Virginia 0101036648, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1396856860
Name
Alf Karl Adler
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
0101036648 VA
Self-reported in NPPES; status is on the state search
Practice location
16830 Dumfries RD, Dumfries, VA 22025
Phone
(703) 574-3415
Enumerated
Aug 31, 2006
Record last updated
Nov 27, 2023
Medicare enrollment
Enrolled (PECOS I20090317000234); accepts Medicare assignment
Medical or professional school
George Washington University School Of Medicine, 1984
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 16830 Dumfries RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Alexandra Nicole Chavez, PT, DPTPhysical Therapist1962185199
  2. Sonica Mahat, NP-CNurse Practitioner1316432164
  3. Sydney Van Dellen, PA-CPhysician Assistant1629669015

Verify Alf Karl Adler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersVirginia Department of Health Professions
    Search for license 0101036648
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Virginia license search

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15% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024

189 Medicare Part D claims for 59 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Alf Adler189
  2. Specialty average165

Most prescribed

  1. Alendronate Sodium33 claims
  2. Estradiol28 claims
  3. Premarin16 claims
  4. Clobetasol Propionate15 claims
  5. Valacyclovir15 claims
  6. Norethindrone Acetate13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 95.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score86.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Sentara Medical GroupDumfries, VA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Alf Karl Adler among 1,174 obstetrics & gynecology physician records in Virginia

Alf Karl Adler, MD is one of 1,174 obstetrics & gynecology physician records with a practice address in Virginia. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.

  • NPI issued2006 · 11% of these records are older, 51% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1984 · median 2005 among the 701 with a school on file
  • Record last updated2023 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Virginia

There are 1,174 obstetrics & gynecology physician records in Virginia.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Terry Allen, MDFairfax, VA 220301932274925
  2. Scott Forrest, MDFairfax, VA 220301225103229
  3. Elizabeth Garreau, M.D.Fairfax, VA 220301295795516
  4. Samuel Grimm, M.D.Fairfax, VA 220301841223674
  5. Kara Jefferies, M.D.Fairfax, VA 220301952407041
  6. James Kacedan, M.D.Fairfax, VA 220301821054933
  7. Gregory Koons, M.D.Fairfax, VA 220301518063692
  8. Jennifer Muldoon, MDFairfax, VA 220301174732143

Common questions

What is Alf Karl Adler, MD's NPI number?

Alf Karl Adler, MD's National Provider Identifier (NPI) is 1396856860, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Alf Karl Adler, MD located?

The NPPES record lists a practice address at 16830 Dumfries RD, Dumfries, VA, 22025. Phone: (703) 574-3415. Providers update this record themselves, so call before visiting.

How can I verify Alf Karl Adler, MD's license?

NPPES lists Virginia license number 0101036648, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Alf Karl Adler, MD prescribe under Medicare Part D?

In 2024, Alf Karl Adler, MD had 189 Medicare Part D claims for 59 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Alf Karl Adler, MD's MIPS final score?

The 2023 MIPS final score is 95.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.