Physician Profile
Douglas A. Horstmanshof, MD
Unclaimed ProfileAbout Dr. Horstmanshof
Douglas A. Horstmanshof, MD is a healthcare provider in Royal Oak, MI specializing in cardiovascular disease (cardiology). Douglas is also listed as specializing in cardiovascular disease. According to Medicare claims data, Douglas cared for 328 Medicare patients across 472 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, ultrasound of heart with color-depicted blood flow, rate, direction and valve function, and established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more. This provider record is associated with NPI 1881688760.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (248) 551-4400
- Email not available
Practice Locations
3601 W 13 MILE RD
Royal Oak, MI 48073
Conditions Commonly Evaluated or Treated
Within Cardiovascular Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Coronary and ischemic heart disease
Heart failure and cardiomyopathy
Heart rhythm
Symptoms and functional disorders
Valve and structural heart
Vascular and risk factors
Artery & vascular
Heart inflammation
Heart muscle
Heart valves
Vascular disease
Procedures & services
Most searched procedures
Office and noninvasive testing
Advanced imaging
Consultations
Diagnostic testing
Diagnostics
Heart devices
- Biventricular Pacemaker (Cardiac Resynchronization Therapy)
- Implantable Loop Recorder (Cardiac Monitor Implant)
Heart imaging
Heart procedures
Heart rhythm procedures
Imaging
Implants
Recovery & rehabilitation
Vascular imaging
Procedures Most Often Billed to Medicare
472 services · 328 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
89 | Less often than most peers in Cardiovascular Disease… |
| Ultrasound of heart, follow-up | Treatment | 93308 |
18 | Less often than most peers in Cardiovascular Disease… |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
17 | Less often than most peers in Cardiovascular Disease… |
| Ultrasound of heart blood flow, valves and chambers, follow-up | Treatment | 93321 |
16 | Less often than most peers in Cardiovascular Disease… |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
135 | More often than most peers in Cardiovascular Disease… |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
64 | As often as other peers in Cardiovascular Disease… |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
40 | Less often than most peers in Cardiovascular Disease… |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
33 | As often as other peers in Cardiovascular Disease… |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
32 | Less often than most peers in Cardiovascular Disease… |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
15 | Less often than most peers in Cardiovascular Disease… |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other cardiovascular diseases in Royal Oak 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1996 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 8
Providers in MI who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Horstmanshof?
Dr. Horstmanshof is a cardiovascular disease (cardiology) in Royal Oak, MI. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Dr. Horstmanshof's address?
Dr. Horstmanshof is listed at 3601 W 13 Mile Rd, Royal Oak, MI 48073. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Horstmanshof?
The number on file is (248) 551-4400. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Horstmanshof's NPI number?
Dr. Horstmanshof's National Provider Identifier is 1881688760. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Horstmanshof train?
Dr. Horstmanshof attended Other, graduating in 1996. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Horstmanshof been practicing?
Dr. Horstmanshof has 30 years experience. Calculated from a graduation year of 1996, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Horstmanshof perform?
According to Medicare billing data, Dr. Horstmanshof provides treatments such as ultrasound of heart with color-depicted blood flow, rate, direction and valve function and ultrasound of heart, follow-up, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Horstmanshof confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Horstmanshof. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.