2026 NPPES data Nephrology Physician NPI 1477522423 M.D.
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ALI ASHTARI, M.D.

Nephrology Physician in SOUTHFIELD, Michigan. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
440
Medicare Part D claims · 97 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$668.98
32 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ALI ASHTARI, M.D. is a Nephrology Physician ([object Object]) practicing in SOUTHFIELD, Michigan with a Medicare Part D prescribing footprint of 440 claims across 97 beneficiaries — 22% brand-name prescribing . Industry payments of $668.98 across 32 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ALI ASHTARI, M.D. filed 440 Medicare Part D claims in 2023 across SOUTHFIELD, Michigan. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ALI ASHTARI, 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).

ALI ASHTARI, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 03/14/2006

NPI 1477522423

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

440 70% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in Michigan

How Nephrology Physician compares to other specialties among Michigan providers

Michigan providers

Nephrology Physician share within Michigan

1. Nephrology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nephrology Physician share within Michigan

Specialty board-certification context

Estimated specialty board-certified rate — Nephrology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Nephrology Physician ABMS/AOA estimate

Est. board-certified rate (Nephrology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Nephrology Physician) — ABMS / AOA estimate

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).

ALI ASHTARI, M.D. is a Nephrology Physician provider practicing in SOUTHFIELD, Michigan, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1477522423. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ALI ASHTARI, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 22250 PROVIDENCE DR, SOUTHFIELD, MI, 48075, with a listed phone of (248) 557-9010. NPI 1477522423 was issued on 03/14/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ASHTARI 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 440 prescription claims written by this provider, covering 97 Medicare beneficiaries and totaling roughly $75K in drug spend, split 22% brand-name and 78% generic by claim count. 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.

Nephrology Physician is a mid-sized specialty nationwide, with 10,534 enrolled providers across 55 states and an average of 1,454 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

22250 PROVIDENCE DR
SOUTHFIELD, MI 48075

Provider Details

NPI 1477522423
Specialty Nephrology Physician
Credentials M.D.
Gender Male
NPI Issued 03/14/2006

Hospital and facility affiliations

Facilities where ALI ASHTARI, 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.

MICHIGAN KIDNEY CONSULTANTS PC
ROYAL OAK, MI

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 ALI ASHTARI, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$669

Largest payer

Ardelyx, Inc.

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.

License & disciplinary context — Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 — they are NOT specific to ALI ASHTARI, M.D.. To verify ALI ASHTARI, M.D.'s current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM 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 Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

ALI ASHTARI, M.D. — brand share 22.0%
Specialty average (est.)

22% brand-name claims vs 78% generic, on 440 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.

440
Total Claims
$75K
Total Drug Cost
97
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
928
Total Day Supply
27,175
Brand vs Generic
22% brand / 78% generic
Brand Drug Cost
$52K
Generic Drug Cost
$24K

Patient Demographics

Average Patient Age
69.9 years
Avg HCC Risk Score
5.21
Gender Split
53% female / 47% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Farxiga
Dapagliflozin Propanediol
52
Furosemide
41
Amlodipine Besylate
37
Torsemide
36
Bumetanide
20
Spironolactone
16
Auryxia
Ferric Citrate
14
Carvedilol
14
Prednisone
14

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

Nephrology Physician Overview

How ALI ASHTARI, M.D. fits within the Nephrology Physician landscape nationally.

10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider

ALI ASHTARI, M.D.'s 440 claims are below the specialty average of 1,454.

Nearby Nephrology Physician Providers in Michigan

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

Compare Nephrology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ALI ASHTARI, M.D.'s specialty?
ALI ASHTARI, M.D. specializes in Nephrology Physician and practices in SOUTHFIELD, Michigan. Credentials: M.D..
How much does ALI ASHTARI, M.D. prescribe under Medicare Part D?
In 2023, ALI ASHTARI, M.D. wrote 440 Medicare Part D claims totaling $75K in drug costs for 97 beneficiaries.
Where is ALI ASHTARI, M.D. located?
ALI ASHTARI, M.D. is located at 22250 PROVIDENCE DR, SOUTHFIELD, MI, 48075. Phone: (248) 557-9010.
What is ALI ASHTARI, M.D.'s NPI number?
ALI ASHTARI, M.D.'s National Provider Identifier (NPI) is 1477522423, issued on 03/14/2006.
Does ALI ASHTARI, M.D. prescribe more brand-name or generic drugs?
ALI ASHTARI, M.D.'s prescribing is 22% brand-name and 78% generic drugs by claim count, with $52K in brand drug costs.
How many Nephrology Physician providers are there in the US?
There are 10,534 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does ALI ASHTARI, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ALI ASHTARI, M.D.'s most frequently prescribed drugs include Farxiga, Furosemide, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALI ASHTARI, M.D. accept Medicare?
ALI ASHTARI, M.D. appears in CMS Medicare data with 440 Part D claims and 97 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALI ASHTARI, M.D.'s credentials?
ALI ASHTARI, M.D.'s NPI is 1477522423 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

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