Medicare PECOS Case Study: 3 Cardiologists Enrolled in 45 Days (Instead of 120)

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Welcome to Exp Credentialing Services. Today I want to talk about something that's been driving a lot of practice managers absolutely crazy recently... Medicare enrollment delays. This case study is for practice managers, cardiology group administrators, and RCM leaders who cannot afford 90–120 day Medicare enrollment delays.

We all know the standard textbook answer you'll read everywhere online. They say it takes 90 to 120 days. But honestly? In the real world of practice management, if you are waiting 120 days to get your doctors in-network, you are losing money. A lot of it.

Just last month, a mid-sized cardiology practice came to us sounding pretty panicked. They had 3 new providers starting, and their previous in-house credentialing person had sort of dropped the ball and quit unexpectedly. The practice administrator ran the numbers and they were looking at a devastating $108,000 in lost revenue if these doctors couldn't bill Medicare on time.

That is a huge hit to take for any clinic.

So, we took over. And we got all three complete and approved in exactly 45 days. There’s no magic trick to this, just a very specific, aggressive process we've developed over 15 years in the RCM and credentialing industry.

Why Outsource Your Medicare PECOS Credentialing & Enrollment Services?

Most people makes the mistake of just logging right into PECOS and starting to type. We dont do that. Before we even touch a CMS-855I form, we do a rigorous pre-audit. I'd say 60% of Medicare denials or delays happen because the legal business name doesn't match the IRS CP-575 perfectly, or a previous NPI linkage was messed up.

We use a custom credentialing tracking portal to manage exactly where we are for each document. Here is a quick look at a sanitized version of what our clients see so they aren't left in the dark:

2. Addressing the "Silent Returns"

When you submit an application, the MAC (Medicare Administrative Contractor) will sometimes return it for corrections. They call this an "RTI" (Return to Provider). The problem? A lot of times, the email notification goes to a junk folder, or to a doctor who never checks that inbox.

Because we set up the authorizations correctly from day one, those notifications come directly to my team. For this cardiology group, one of the doctors had an old practice address still linked to his NPI from residency. We got the RTI notification on a Tuesday, we had the correction submitted by Wednesday morning. If the practice was doing this themselves, that application would have just sat there for 30 days until it deactivated.

3. Relentless Follow Up (The Squeaky Wheel Strategy)

You cannot just submit an application to Medicare and wait. Our team's internal policy is to follow up exactly 14 days after submission, and then every 7 days after that.

But we don't just call and ask "what's the status?" — we call with the exact Document Control Number (DCN), National Provider Identifier (NPI), and Legal Business Name ready. We speak the MAC's language because many of our team members used to work for the payers directly.

The Bottom Line

Medicare credentialing isn't just about data entry. It's about anticipation. Anticipating what the MAC is going to ask for, and giving it to them before they even have a chance to pause your application.

If your practice is struggling with this, or if you have new providers coming on board in the next few months... don't let them sit idle while you hemorrhage revenue.