2026 NPPES data Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician NPI 1245559848 MD
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MARY ACKENBOM, MD

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician in ANN ARBOR, 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
529
Medicare Part D claims · 175 beneficiaries · Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician avg: 611
Generic prescribing
54%
generic claims · 46% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
77.5068/100
▼ 6 pts below national avg 83.1 · [object Object]
What the federal data reveals: MARY ACKENBOM, MD is a Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician ([object Object]) practicing in ANN ARBOR, Michigan with a Medicare Part D prescribing footprint of 529 claims across 175 beneficiaries — 46% brand-name prescribing . Their CMS MIPS Final Score of 77.5068/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: MARY ACKENBOM, MD reported a CMS MIPS final score of 77.5068 out of 100, below the 83.1 national average, and filed 529 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MARY ACKENBOM, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

MARY ACKENBOM, MD at a glance

Below national average

NPI registry status

Active

Issued 05/21/2010

NPI 1245559848

Primary specialty

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician

Niche

568 US NPIs in this specialty

Medicare Part D claims

529 13% vs specialty avg

2023 prescription claims

Specialty avg: 611

MIPS final score

77.5068/100 5.593199999999996% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Michigan

How Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician compares to other specialties among Michigan providers

Michigan providers

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician share within Michigan

1. Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician share within Michigan

Medicare quality performance — MIPS

MARY ACKENBOM, MD's 2023 MIPS final score plotted against the Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician national average

Below national average
MIPS Final Score
77.5068/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician) — 77.5068/100 vs national avg 83.1

0%100%National avg83%77.5%
MIPS final score (Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician) — 77.5068/100 vs national avg 83.1

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).

MARY ACKENBOM, MD is a Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician provider practicing in ANN ARBOR, Michigan, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1245559848. 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.

MARY ACKENBOM, MD appears in the CMS NPPES registry as a Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician provider holding MD credentials at 1500 E MEDICAL CENTER DR, ANN ARBOR, MI, 48109, with a listed phone of (734) 936-5000. NPI 1245559848 was issued on 05/21/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ACKENBOM 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 529 prescription claims written by this provider, covering 175 Medicare beneficiaries and totaling roughly $169K in drug spend, split 46% brand-name and 54% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 77.5068/100 for the 2023 performance year (Quality 68.6144, Cost 56.4081), compared with the national average of 83.1.

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician is a narrow specialty nationwide, with 568 enrolled providers across 49 states and an average of 611 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

1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109

Provider Details

NPI 1245559848
Specialty Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician
Credentials MD
Gender Female
NPI Issued 05/21/2010

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

77.5068
Final Score
Avg: 83.1
68.6144
Quality
56.4081
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MARY ACKENBOM, MD 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 OF PITTSBURGH PHYSICIANS
PITTSBURGH, PA

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

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 MARY ACKENBOM, MD. To verify MARY ACKENBOM, MD'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 · Above average

MARY ACKENBOM, MD — brand share 46.0%
Specialty average (est.)

46% brand-name claims vs 54% generic, on 529 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.

529
Total Claims
$169K
Total Drug Cost
175
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
897
Total Day Supply
25,090
Brand vs Generic
46% brand / 54% generic
Brand Drug Cost
$144K
Generic Drug Cost
$25K
Antibiotic Claims
59

Patient Demographics

Average Patient Age
74.1 years
Avg HCC Risk Score
1.11
Gender Split
100% female / 0% male
Age Distribution
<65: 14, 65-74: 79, 75-84: 63, 85+: 19

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Myrbetriq
Mirabegron
166
Estradiol
98
Trospium Chloride Er
Trospium Chloride
36
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
30
Methenamine Hippurate
22
Gemtesa
Vibegron
20
Trospium Chloride
13
Clobetasol Propionate
11
Premarin
"Estrogens
N/A

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

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Overview

How MARY ACKENBOM, MD fits within the Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician landscape nationally.

568
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Providers in US
49
States with Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician
611
Avg Claims per Provider

MARY ACKENBOM, MD's 529 claims are below the specialty average of 611.

Nearby Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Providers in Michigan

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

Compare Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARY ACKENBOM, MD's specialty?
MARY ACKENBOM, MD specializes in Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician and practices in ANN ARBOR, Michigan. Credentials: MD.
How much does MARY ACKENBOM, MD prescribe under Medicare Part D?
In 2023, MARY ACKENBOM, MD wrote 529 Medicare Part D claims totaling $169K in drug costs for 175 beneficiaries.
What is MARY ACKENBOM, MD's Medicare quality score?
MARY ACKENBOM, MD has a CMS MIPS Final Score of 77.5068/100 (Quality: 68.6144, Cost: 56.4081). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MARY ACKENBOM, MD located?
MARY ACKENBOM, MD is located at 1500 E MEDICAL CENTER DR, ANN ARBOR, MI, 48109. Phone: (734) 936-5000.
What is MARY ACKENBOM, MD's NPI number?
MARY ACKENBOM, MD's National Provider Identifier (NPI) is 1245559848, issued on 05/21/2010.
Does MARY ACKENBOM, MD prescribe more brand-name or generic drugs?
MARY ACKENBOM, MD's prescribing is 46% brand-name and 54% generic drugs by claim count, with $144K in brand drug costs.
How many Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician providers are there in the US?
There are 568 Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician providers across 49 states in the US. The average Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician provider writes 611 Medicare Part D claims per year.
What drugs does MARY ACKENBOM, MD prescribe most often?
Based on 2023 Medicare Part D data, MARY ACKENBOM, MD's most frequently prescribed drugs include Myrbetriq, Estradiol, Trospium Chloride Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARY ACKENBOM, MD accept Medicare?
MARY ACKENBOM, MD appears in CMS Medicare data with 529 Part D claims and 175 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARY ACKENBOM, MD's credentials?
MARY ACKENBOM, MD's NPI is 1245559848 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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