2026 NPPES data Geriatric Medicine (Family Medicine) Physician NPI 1922014273 DO
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KERRY BLACKHAM, DO

Geriatric Medicine (Family Medicine) Physician in PHILIP, South Dakota. 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
6K
Medicare Part D claims · 304 beneficiaries · Geriatric Medicine (Family Medicine) Physician avg: 5K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$194.63
11 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: KERRY BLACKHAM, DO is a Geriatric Medicine (Family Medicine) Physician ([object Object]) practicing in PHILIP, South Dakota with a Medicare Part D prescribing footprint of 6K claims across 304 beneficiaries — 11% brand-name prescribing . Industry payments of $194.63 across 11 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: KERRY BLACKHAM, DO filed 5,568 Medicare Part D claims in 2023 across PHILIP, South Dakota. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

KERRY BLACKHAM, DO 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).

KERRY BLACKHAM, DO at a glance

Quality data not reported

NPI registry status

Active

Issued 07/31/2006

NPI 1922014273

Primary specialty

Geriatric Medicine (Family Medicine) Physician

Niche

1,779 US NPIs in this specialty

Medicare Part D claims

5,568 15% vs specialty avg

2023 prescription claims

Specialty avg: 4,854

Specialty distribution in South Dakota

How Geriatric Medicine (Family Medicine) Physician compares to other specialties among South Dakota providers

South Dakota providers

Geriatric Medicine (Family Medicine) Physician share within South Dakota

1. Geriatric Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Geriatric Medicine (Family Medicine) Physician share within South Dakota

Specialty board-certification context

Estimated specialty board-certified rate — Geriatric Medicine (Family Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Geriatric Medicine (Family Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Geriatric Medicine (Family Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Geriatric Medicine (Family Medicine) 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).

KERRY BLACKHAM, DO is a Geriatric Medicine (Family Medicine) Physician provider practicing in PHILIP, South Dakota, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DO. NPI: 1922014273. 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.

KERRY BLACKHAM, DO appears in the CMS NPPES registry as a Geriatric Medicine (Family Medicine) Physician provider holding DO credentials at 503 W PINE ST, PHILIP, SD, 57567, with a listed phone of (605) 859-2566. NPI 1922014273 was issued on 07/31/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BLACKHAM 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 5,568 prescription claims written by this provider, covering 304 Medicare beneficiaries and totaling roughly $332K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 4.8%. 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.

Geriatric Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 1,779 enrolled providers across 52 states and an average of 4,854 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

503 W PINE ST
PHILIP, SD 57567

Provider Details

NPI 1922014273
Specialty Geriatric Medicine (Family Medicine) Physician
Credentials DO
Gender Male
NPI Issued 07/31/2006

Hospital and facility affiliations

Facilities where KERRY BLACKHAM, DO 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.

PHILIP HEALTH SERVICES INC
PHILIP, SD

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 KERRY BLACKHAM, DO. Source: openpaymentsdata.cms.gov.

Total received

$195

Largest payer

Novartis Pharmaceuticals 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.

Brand vs generic prescribing mix · Typical

KERRY BLACKHAM, DO — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 5,568 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.

5,568
Total Claims
$332K
Total Drug Cost
304
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,735
Total Day Supply
185,595
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$251K
Generic Drug Cost
$79K
Opioid Claims
265 (4.8% rate)
Antibiotic Claims
219

Patient Demographics

Average Patient Age
75.9 years
Avg HCC Risk Score
1.12
Gender Split
60% female / 40% male
Age Distribution
<65: 21, 65-74: 132, 75-84: 86, 85+: 65

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
210
Losartan Potassium
210
Levothyroxine Sodium
202
Tamsulosin Hcl
200
Furosemide
199
Sertraline Hcl
176
Omeprazole
162
Amlodipine Besylate
161
Quetiapine Fumarate
150
Gabapentin
144

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

Geriatric Medicine (Family Medicine) Physician Overview

How KERRY BLACKHAM, DO fits within the Geriatric Medicine (Family Medicine) Physician landscape nationally.

1,779
Geriatric Medicine (Family Medicine) Physician Providers in US
52
States with Geriatric Medicine (Family Medicine) Physician
4,854
Avg Claims per Provider

KERRY BLACKHAM, DO's 5,568 claims are above the specialty average of 4,854.

Nearby Geriatric Medicine (Family Medicine) Physician Providers in South Dakota

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

Compare Geriatric Medicine (Family Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is KERRY BLACKHAM, DO's specialty?
KERRY BLACKHAM, DO specializes in Geriatric Medicine (Family Medicine) Physician and practices in PHILIP, South Dakota. Credentials: DO.
How much does KERRY BLACKHAM, DO prescribe under Medicare Part D?
In 2023, KERRY BLACKHAM, DO wrote 5,568 Medicare Part D claims totaling $332K in drug costs for 304 beneficiaries.
Where is KERRY BLACKHAM, DO located?
KERRY BLACKHAM, DO is located at 503 W PINE ST, PHILIP, SD, 57567. Phone: (605) 859-2566.
What is KERRY BLACKHAM, DO's NPI number?
KERRY BLACKHAM, DO's National Provider Identifier (NPI) is 1922014273, issued on 07/31/2006.
Does KERRY BLACKHAM, DO prescribe more brand-name or generic drugs?
KERRY BLACKHAM, DO's prescribing is 11% brand-name and 89% generic drugs by claim count, with $251K in brand drug costs.
Does KERRY BLACKHAM, DO prescribe opioids?
Yes, KERRY BLACKHAM, DO had 265 opioid claims in 2023 with an opioid prescribing rate of 4.8%.
How many Geriatric Medicine (Family Medicine) Physician providers are there in the US?
There are 1,779 Geriatric Medicine (Family Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Family Medicine) Physician provider writes 4,854 Medicare Part D claims per year.
What drugs does KERRY BLACKHAM, DO prescribe most often?
Based on 2023 Medicare Part D data, KERRY BLACKHAM, DO's most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KERRY BLACKHAM, DO accept Medicare?
KERRY BLACKHAM, DO appears in CMS Medicare data with 5,568 Part D claims and 304 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KERRY BLACKHAM, DO's credentials?
KERRY BLACKHAM, DO's NPI is 1922014273 with credentials DO. 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