2026 NPPES data Nephrology Physician NPI 1104825660 M.D.
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MICHAEL ULLIAN, M.D.

Nephrology Physician in CHARLESTON, South Carolina. 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
427
Medicare Part D claims · 85 beneficiaries · Nephrology Physician avg: 1K

What the federal data shows

MICHAEL ULLIAN, M.D. filed 427 Medicare Part D claims in 2023 as a Nephrology Physician in CHARLESTON, South Carolina.

427
Part D claims, 2023
Likely
board-certified (heuristic)

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.

MICHAEL ULLIAN, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

427 Top 38% higher than 62% 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%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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 certification likely (heuristic — not verified)

MICHAEL ULLIAN, 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 MICHAEL ULLIAN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 07/18/2005

NPI 1104825660

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

427 71% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in South Carolina

How Nephrology Physician compares to other specialties among South Carolina providers

South Carolina providers

Nephrology Physician share within South Carolina

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

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).

MICHAEL ULLIAN, M.D. is a Nephrology Physician provider practicing in CHARLESTON, South Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1104825660. 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.

MICHAEL ULLIAN, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 171 ASHLEY AVE, CHARLESTON, SC, 29425, with a listed phone of (843) 792-1414. NPI 1104825660 was issued on 07/18/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ULLIAN 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 427 prescription claims written by this provider, covering 85 Medicare beneficiaries and totaling roughly $57K in drug spend. 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

171 ASHLEY AVE
CHARLESTON, SC 29425

Provider Details

NPI 1104825660
Specialty Nephrology Physician
Credentials M.D.
Gender Male
NPI Issued 07/18/2005

Hospital and facility affiliations

Facilities where MICHAEL ULLIAN, 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.

UNIVERSITY MEDICAL ASSOCIATES OF THE MEDICAL UNIVERSITY OF SOUTH CAROL
CHARLESTON, SC

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

427
Total Claims
$57K
Total Drug Cost
85
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
947
Total Day Supply
26,952
Generic Drug Cost
$20K
Antibiotic Claims
29

Patient Demographics

Average Patient Age
61.7 years
Avg HCC Risk Score
6.41
Gender Split
58% female / 42% male
Age Distribution
<65: 38, 65-74: 30, 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.

Drug Claims
Carvedilol
36
Sevelamer Carbonate
32
Amlodipine Besylate
31
Furosemide
25
Losartan Potassium
24
Prosol
Parenteral Amino Acid 20% No.1
21
Lisinopril
20
Calcium Acetate
15
Calcitriol
12
Labetalol Hcl
11

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

Nephrology Physician Overview

How MICHAEL ULLIAN, 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

MICHAEL ULLIAN, M.D.'s 427 claims are below the specialty average of 1,454.

Nearby Nephrology Physician Providers in South Carolina

Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as ULLIAN.

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

Frequently Asked Questions

What is MICHAEL ULLIAN, M.D.'s specialty?
MICHAEL ULLIAN, M.D. specializes in Nephrology Physician and practices in CHARLESTON, South Carolina. Credentials: M.D..
How much does MICHAEL ULLIAN, M.D. prescribe under Medicare Part D?
In 2023, MICHAEL ULLIAN, M.D. wrote 427 Medicare Part D claims totaling $57K in drug costs for 85 beneficiaries.
Where is MICHAEL ULLIAN, M.D. located?
MICHAEL ULLIAN, M.D. is located at 171 ASHLEY AVE, CHARLESTON, SC, 29425. Phone: (843) 792-1414.
What is MICHAEL ULLIAN, M.D.'s NPI number?
MICHAEL ULLIAN, M.D.'s National Provider Identifier (NPI) is 1104825660, issued on 07/18/2005.
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 MICHAEL ULLIAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL ULLIAN, M.D.'s most frequently prescribed drugs include Carvedilol, Sevelamer Carbonate, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL ULLIAN, M.D. accept Medicare?
MICHAEL ULLIAN, M.D. appears in CMS Medicare data with 427 Part D claims and 85 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL ULLIAN, M.D.'s credentials?
MICHAEL ULLIAN, M.D.'s NPI is 1104825660 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