2026 NPPES data Internal Medicine Physician NPI 1902852502 MD
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Alexander Chow, MD

Internal Medicine Physician in Vancouver, Washington. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,858 in Internal 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
6K
Medicare Part D claims · 484 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
91%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Alexander Chow, MD filed 6,067 Medicare Part D claims in 2023 as a Internal Medicine Physician in Vancouver, Washington, prescribing 91% generic.

6K
Part D claims, 2023
91%
generic prescribing

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.

Alexander Chow, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

6,067 Top 5% higher than 95% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2K+: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic, not verified)

Alexander Chow, MD 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 Alexander Chow, MD?

Quality data not reported

NPI registry status

Active

Issued 05/25/2006

NPI 1902852502

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

6,067 123% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Washington

How Internal Medicine Physician compares to other specialties among Washington providers

Washington providers

Largest specialties in Washington (% of in-state providers)

Mental Health Counselor - 8.6%Mental Health Counselor8.6%Massage Therapist - 6.5%Massage Therapist6.5%Counselor - 5.7%Counselor5.7%Behavior Technician - 4.5%Behavior Technician4.5%Pharmacist - 4%Pharmacist4%Physical Therapist - 3.6%Physical Therapist3.6%Internal Medicine Physician - 1.9%Internal Medicine Physician1.9%
Largest specialties in Washington (% of in-state 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 Internal Medicine Physician. Verify directly:

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).

Alexander Chow, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 700 NE 87TH AVE, Vancouver, WA, 98664, with a listed phone of (360) 254-1240. NPI 1902852502 was issued on 05/25/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Chow most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 6,067 prescription claims written by this provider, covering 484 Medicare beneficiaries and totaling roughly $429K in drug spend, split 8% brand-name and 91% generic by claim count, with an opioid prescribing rate of 3.4%. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

700 NE 87TH AVE
Vancouver, WA 98664

Provider Details

NPI 1902852502
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 05/25/2006

License & disciplinary context - Washington WMC 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 - they are NOT specific to Alexander Chow, MD. To verify Alexander Chow, MD's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases

WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

Alexander Chow, MD - brand share 8.0%
Internal Medicine Physician average

8% brand-name claims vs 91% generic, on 6,067 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.

6,067
Total Claims
$429K
Total Drug Cost
484
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
14,727
Total Day Supply
434,513
Brand vs Generic
8% brand / 91% generic
Brand Drug Cost
$331K
Generic Drug Cost
$96K
Opioid Claims
207 (3.4% rate)
Antibiotic Claims
74

Patient Demographics

Average Patient Age
76.7 years
Avg HCC Risk Score
1.17
Gender Split
47% female / 53% male
Age Distribution
<65: 18, 65-74: 181, 75-84: 205, 85+: 80

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Alexander Chow, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
578
Amlodipine Besylate
461
Losartan Potassium
339
Lisinopril
299
Levothyroxine Sodium
268
Metoprolol Succinate
185
Omeprazole
177
Gabapentin
157
Metformin Hcl
152
Hydrochlorothiazide
141

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Internal Medicine Physician Overview

How Alexander Chow, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Alexander Chow, MD's 6,067 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Washington

Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Chow.

Compare Internal 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 Washington medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal 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.

Frequently Asked Questions

What is Alexander Chow, MD's specialty?
Alexander Chow, MD specializes in Internal Medicine Physician and practices in Vancouver, Washington. Credentials: MD.
How much does Alexander Chow, MD prescribe under Medicare Part D?
In 2023, Alexander Chow, MD wrote 6,067 Medicare Part D claims totaling $429K in drug costs for 484 beneficiaries.
Where is Alexander Chow, MD located?
Alexander Chow, MD is located at 700 NE 87TH AVE, Vancouver, WA, 98664. Phone: (360) 254-1240.
What is Alexander Chow, MD's NPI number?
Alexander Chow, MD's National Provider Identifier (NPI) is 1902852502, issued on 05/25/2006.
Does Alexander Chow, MD prescribe more brand-name or generic drugs?
Alexander Chow, MD's prescribing is 8% brand-name and 91% generic drugs by claim count, with $331K in brand drug costs.
Does Alexander Chow, MD prescribe opioids?
Yes, Alexander Chow, MD had 207 opioid claims in 2023 with an opioid prescribing rate of 3.4%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Alexander Chow, MD prescribe most often?
Based on 2023 Medicare Part D data, Alexander Chow, MD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Alexander Chow, MD accept Medicare?
Alexander Chow, MD appears in CMS Medicare data with 6,067 Part D claims and 484 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alexander Chow, MD's credentials?
Alexander Chow, MD's NPI is 1902852502 with credentials MD. 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

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

Compiled from official public sources by the PlainDoctor editorial team.