NPI registry status
Active
2026 NPPES data Geriatric Psychiatry Physician NPI 1942366224 M.D.
Verify on CMS → Charles Milliken, M.D.
Geriatric Psychiatry 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 787 in Geriatric Psychiatry 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.
What the federal data shows
Charles Milliken, M.D. is a Geriatric Psychiatry Physician in Washington, District of Columbia, listed in the federal CMS National Provider Identifier registry.
- #258
- Geriatric Psychiatry Physician rank among District of Columbia specialties
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 Charles Milliken, M.D.
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1942366224), first enumerated 12/29/2006.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- 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 1942366224 · Geriatric Psychiatry Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1942366224
- ENUM-LEGACY 2006
- TAX-NARROW 787
- RX-NONE No Part D
- BOOK-THIN 5 in District of Columbia
- PHOTO-ENUM William Irvin, MD · 2006
◑
Board-eligible specialty (heuristic, not verified)
Charles Milliken, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Charles Milliken, M.D.?
Quality data not reportedPrimary specialty
Geriatric Psychiatry Physician
Specialty distribution in District of Columbia
How Geriatric Psychiatry 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 Geriatric Psychiatry 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 | 1942366224 |
|---|---|
| Specialty | Geriatric Psychiatry Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 12/29/2006 |
More Geriatric Psychiatry Physician in DC →
All providers in District of Columbia →
Compare specialties →
Geriatric Psychiatry Physician Overview
How Charles Milliken, M.D. fits within the Geriatric Psychiatry Physician landscape nationally.
787
Geriatric Psychiatry Physician Providers in US
46
States with Geriatric Psychiatry Physician
1,586
Avg Claims per Provider
Nationwide Geriatric Psychiatry Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Milliken, both outside District of Columbia so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Geriatric Psychiatry 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 Milliken.
One of 5 Geriatric Psychiatry Physician providers enrolled in District of Columbia, 4 are shown here.
Dr. Walter Bland
MD
Washington, DC
Dr. Panakkal David
M.D.
Washington, DC
Dr. Sarah Kleinfeld
MD
Washington, DC
Dr. Peter Nguyen
DO
Washington, DC
Compare Geriatric Psychiatry Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Charles Milliken, M.D.'s specialty? ▼
Charles Milliken, M.D. specializes in Geriatric Psychiatry Physician and practices in Washington, District of Columbia. Credentials: M.D..
Where is Charles Milliken, M.D. located? ▼
Charles Milliken, M.D. is located at 6900 GEORGIA AVE. NW, Washington, DC, 20307. Phone: (202) 782-6275.
What is Charles Milliken, M.D.'s NPI number? ▼
Charles Milliken, M.D.'s National Provider Identifier (NPI) is 1942366224, issued on 12/29/2006.
How many Geriatric Psychiatry Physician providers are there in the US? ▼
There are 787 Geriatric Psychiatry Physician providers across 46 states in the US. The average Geriatric Psychiatry Physician provider writes 1,586 Medicare Part D claims per year.
Does Charles Milliken, M.D. accept Medicare? ▼
Charles Milliken, M.D. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Charles Milliken, M.D.'s credentials? ▼
Charles Milliken, M.D.'s NPI is 1942366224 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.
- 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.