Market case study · Aging practice identification

Which physicians near Springfield may be thinking about retirement

Here's the physician practice tool worked through for one market: every physician within 25 miles of Springfield, Massachusetts, by estimated age and by how likely they are to practice outside a hospital system. Names and addresses are greyed out. A licensed account sees them, along with NPIs and a CSV.

Physicians in the area

2,962

within 25 miles

Aged 60 and over

740

25% of the area; 439 are 65+

60+, billing Medicare, no hospital tie found

31 in billing groups of five or fewer

60+ with hospital privileges or a mostly affiliated group

264

a looser lead: privileges alone do not mean employment

1. Start with the market's age curve

The tool opens on the share of the area's physicians in each age band, against the nation (dashed). Primary care here is 40% aged 55 and over against 32% nationally. A market whose curve sits above the nation's has more practices that will change hands in the next decade.

Primary care physicians727 physicians

40%aged 55+
vs 32% U.S. (+8 pts)

Obstetrics and gynecology141 physicians

33%aged 55+
vs 32% U.S. (+1 pts)

Surgeons (general, orthopedic and other surgery)377 physicians

39%aged 55+
vs 35% U.S. (+4 pts)

Other specialists1,717 physicians

33%aged 55+
vs 30% U.S. (+3 pts)

Solid line: Springfield. Dashed line: United States. Each curve is the share of that group's physicians in each age band.

2. Filter to age, specialty and independent practice (likelihood)

Each physician gets an independent practice likelihood from public CMS records: high, medium or low. High means we found no tie to a hospital. Whether a physician plans to retire is a question for the call.

Independent practice: high

34

No hospital tie found. Aged 60 to 80 and billing Medicare.

Independent practice: medium

264

Hospital privileges on CMS, or a mostly hospital-affiliated billing group. Aged 60 to 80 and billing Medicare.

Independent practice: low

354

At a hospital or system address. Aged 60 to 80 and billing Medicare.

Where the high-rated physicians practice

Specialty group	Physicians aged 60-80, rated high
Psychiatry	13
General and other surgery	10
Other medical specialties	5
Other physicians	2
Primary care	2
Radiology	1
Cardiology	1

3. Read the list

A sample of 14 of the 31 high-rated physicians aged 60 to 80 in billing groups of five or fewer. The licensed list shows the name, NPI, exact estimated age, street address, billing group name and Medicare volume for each. Specialty is shown as a group and volume as a band here.

Physician	Specialty group	Estimated age	Practice address	State	Billing group	Medicare volume	Independent practice (likelihood)
Name withheld in this case study	Other medical specialties	80-84	Address withheld in this case study	CT	Solo	High	high
Name withheld in this case study	Psychiatry	75-79	Address withheld in this case study	CT	Solo	High	high
Name withheld in this case study	Other physicians	75-79	Address withheld in this case study	CT	Solo	Low	high
Name withheld in this case study	Radiology	70-74	Address withheld in this case study	CT	Solo	Low	high
Name withheld in this case study	Psychiatry	70-74	Address withheld in this case study	MA	Solo	Low	high
Name withheld in this case study	Other medical specialties	70-74	Address withheld in this case study	CT	Solo	Low	high
Name withheld in this case study	Other medical specialties	70-74	Address withheld in this case study	MA	Solo	Medium	high
Name withheld in this case study	General and other surgery	70-74	Address withheld in this case study	CT	Solo	Medium	high
Name withheld in this case study	General and other surgery	70-74	Address withheld in this case study	MA	Solo	Low	high
Name withheld in this case study	Psychiatry	65-69	Address withheld in this case study	MA	Solo	Medium	high
Name withheld in this case study	Psychiatry	65-69	Address withheld in this case study	MA	2 physicians	Medium	high
Name withheld in this case study	General and other surgery	65-69	Address withheld in this case study	MA	4 physicians	High	high
Name withheld in this case study	Psychiatry	60-64	Address withheld in this case study	MA	2 physicians	High	high
Name withheld in this case study	Other medical specialties	60-64	Address withheld in this case study	CT	5 physicians	High	high

How to use it

Start from the 60+ physicians with a high independent practice likelihood in a solo or small group: the practices nearest to a transition.
Check the medium-likelihood physicians next. Privileges at a hospital are common for independent physicians, so they are leads, not exclusions.
Download the licensed CSV for the area and match it against your own list before outreach.

Ages are estimated from medical school graduation year (minus 26) and run young for international graduates. The list covers physicians enrolled in Medicare; those who see no Medicare patients are not in it. Sources: CMS Doctors and Clinicians, facility affiliations and Medicare billing (data as of 2026-10-24).

See plans For roll-ups and independent sponsors Ask about the physician practice list