2026 NPPES data Foot & Ankle Surgery Podiatrist NPI 1134482532 D.P.M.
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MARK BULLOCK, D.P.M.

Foot & Ankle Surgery Podiatrist in SAGINAW, 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
619
Medicare Part D claims · 127 beneficiaries · Foot & Ankle Surgery Podiatrist avg: 309
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$354.48
8 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MARK BULLOCK, D.P.M. is a Foot & Ankle Surgery Podiatrist ([object Object]) practicing in SAGINAW, Michigan with a Medicare Part D prescribing footprint of 619 claims across 127 beneficiaries — 2% brand-name prescribing . Industry payments of $354.48 across 8 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MARK BULLOCK, D.P.M. filed 619 Medicare Part D claims in 2023 across SAGINAW, Michigan. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

MARK BULLOCK, D.P.M. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/20/2012

NPI 1134482532

Primary specialty

Foot & Ankle Surgery Podiatrist

Mid-sized

8,920 US NPIs in this specialty

Medicare Part D claims

619 100% vs specialty avg

2023 prescription claims

Specialty avg: 309

Specialty distribution in Michigan

How Foot & Ankle Surgery Podiatrist compares to other specialties among Michigan providers

Michigan providers

Foot & Ankle Surgery Podiatrist share within Michigan

1. Foot & Ankle Surgery Podiatrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Foot & Ankle Surgery Podiatrist share within Michigan

Specialty board-certification context

Estimated specialty board-certified rate — Foot & Ankle Surgery Podiatrist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Foot & Ankle Surgery Podiatrist ABMS/AOA estimate

Est. board-certified rate (Foot & Ankle Surgery Podiatrist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Foot & Ankle Surgery Podiatrist) — 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).

MARK BULLOCK, D.P.M. is a Foot & Ankle Surgery Podiatrist provider practicing in SAGINAW, Michigan, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.P.M.. NPI: 1134482532. 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.

MARK BULLOCK, D.P.M. appears in the CMS NPPES registry as a Foot & Ankle Surgery Podiatrist provider holding D.P.M. credentials at 5483 GRATIOT RD, SAGINAW, MI, 48638, with a listed phone of (989) 583-5626. NPI 1134482532 was issued on 06/20/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BULLOCK 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 619 prescription claims written by this provider, covering 127 Medicare beneficiaries and totaling roughly $16K in drug spend, split 2% brand-name and 98% generic by claim count, with an opioid prescribing rate of 4.2%. 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.

Foot & Ankle Surgery Podiatrist is a mid-sized specialty nationwide, with 8,920 enrolled providers across 53 states and an average of 309 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

5483 GRATIOT RD
SAGINAW, MI 48638

Provider Details

NPI 1134482532
Specialty Foot & Ankle Surgery Podiatrist
Credentials D.P.M.
Gender Male
NPI Issued 06/20/2012

Hospital and facility affiliations

Facilities where MARK BULLOCK, D.P.M. 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.

COVENANT MEDICAL CENTER, INC.
SAGINAW, 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 MARK BULLOCK, D.P.M.. Source: openpaymentsdata.cms.gov.

Total received

$354

Largest payer

Stryker Corporation

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 MARK BULLOCK, D.P.M.. To verify MARK BULLOCK, D.P.M.'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 · Generic-heavy

MARK BULLOCK, D.P.M. — brand share 2.0%
Specialty average (est.)

2% brand-name claims vs 98% generic, on 619 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.

619
Total Claims
$16K
Total Drug Cost
127
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
621
Total Day Supply
6,001
Brand vs Generic
2% brand / 98% generic
Brand Drug Cost
$3K
Generic Drug Cost
$13K
Opioid Claims
26 (4.2% rate)
Antibiotic Claims
545

Patient Demographics

Average Patient Age
68.6 years
Avg HCC Risk Score
2.80
Gender Split
50% female / 50% male
Age Distribution
<65: 33, 65-74: 59, 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
Doxycycline Hyclate
195
Ciprofloxacin Hcl
137
Vancomycin Hcl
51
Ampicillin-Sulbactam
Ampicillin Sod/Sulbactam Sod
46
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
31
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
24
Ceftriaxone
Ceftriaxone Sodium
22
Piperacillin-Tazobactam
Piperacillin Sodium/Tazobactam
16
Linezolid
12
Cephalexin
11

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

Foot & Ankle Surgery Podiatrist Overview

How MARK BULLOCK, D.P.M. fits within the Foot & Ankle Surgery Podiatrist landscape nationally.

8,920
Foot & Ankle Surgery Podiatrist Providers in US
53
States with Foot & Ankle Surgery Podiatrist
309
Avg Claims per Provider

MARK BULLOCK, D.P.M.'s 619 claims are above the specialty average of 309.

Nearby Foot & Ankle Surgery Podiatrist Providers in Michigan

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

Compare Foot & Ankle Surgery Podiatrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARK BULLOCK, D.P.M.'s specialty?
MARK BULLOCK, D.P.M. specializes in Foot & Ankle Surgery Podiatrist and practices in SAGINAW, Michigan. Credentials: D.P.M..
How much does MARK BULLOCK, D.P.M. prescribe under Medicare Part D?
In 2023, MARK BULLOCK, D.P.M. wrote 619 Medicare Part D claims totaling $16K in drug costs for 127 beneficiaries.
Where is MARK BULLOCK, D.P.M. located?
MARK BULLOCK, D.P.M. is located at 5483 GRATIOT RD, SAGINAW, MI, 48638. Phone: (989) 583-5626.
What is MARK BULLOCK, D.P.M.'s NPI number?
MARK BULLOCK, D.P.M.'s National Provider Identifier (NPI) is 1134482532, issued on 06/20/2012.
Does MARK BULLOCK, D.P.M. prescribe more brand-name or generic drugs?
MARK BULLOCK, D.P.M.'s prescribing is 2% brand-name and 98% generic drugs by claim count, with $3K in brand drug costs.
Does MARK BULLOCK, D.P.M. prescribe opioids?
Yes, MARK BULLOCK, D.P.M. had 26 opioid claims in 2023 with an opioid prescribing rate of 4.2%.
How many Foot & Ankle Surgery Podiatrist providers are there in the US?
There are 8,920 Foot & Ankle Surgery Podiatrist providers across 53 states in the US. The average Foot & Ankle Surgery Podiatrist provider writes 309 Medicare Part D claims per year.
What drugs does MARK BULLOCK, D.P.M. prescribe most often?
Based on 2023 Medicare Part D data, MARK BULLOCK, D.P.M.'s most frequently prescribed drugs include Doxycycline Hyclate, Ciprofloxacin Hcl, Vancomycin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARK BULLOCK, D.P.M. accept Medicare?
MARK BULLOCK, D.P.M. appears in CMS Medicare data with 619 Part D claims and 127 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARK BULLOCK, D.P.M.'s credentials?
MARK BULLOCK, D.P.M.'s NPI is 1134482532 with credentials D.P.M.. 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